Advanced Search Guide

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Frequent Internet users are probably not unfamiliar with the search engine, but when it comes to using you to achieve the use of ease or to be adept at it? Everything is fastidious about a skill, search engine is no exception. If you want to fully understand the use of search engine skills, may not read the following article carefully, I believe you will be able to benefit after reading.

Advanced Web Search
Learning advanced Web Search will greatly improve your chances of finding information. However, most search engines will limit your search to some extent.
Ii. the sensitivity of capitals
If you are searching for a keyword that is capitalized, only those files that contain uppercase letters will be found in the search results. For example, if you are interested in Chinese-related documents, capitalize the letter of China, and use a more sensitive search engine in uppercase letters, the results of which will not have the documents on porcelain, utensils. If you want to get a better search result, it's generally not a good capitalization.
Iii. Phrase Search
When searching for multiple words in a certain order in a keyword, enclose them in quotation marks so that the search results are files that fully match the query criteria. For example, if you search for gun control laws and use "gun control" as a keyword, the search results are documents that contain gun control. However, if you do not enclose the keyword in quotes, the search results appear as a document that contains a gun or controls a single keyword, possibly a topic that has nothing to do with gun control.
Iv. Abbreviations
If you're looking for information on gardening (gardening), you can use it as a keyword. However, if your search results are limited in number (though not necessarily gardening-related) and you want to expand your search, use the main part and the asterisk (garden*), and the search results will include "gardens, garden, gardener, Gardeners "and so on.
V. Boolean logic
Qualifying search criteria may be the most important feature, and Boolean provides you with a useful search engine logic. Boolean and, or, not (or the and not in some search engines), NEAR and parentheses are in many ways like computing a complex mathematical equation. This is what a Boolean is going to do for you.
Vi. and
If you want to include all the keywords in the search results, use uppercase and in the keyword, and the search results will include these two words. For example, search for 49ers and schedule, the search results are consistent with these two keyword files. Note: Be sure to capitalize each letter of and, or the search engine will think it is a keyword.

If the ellipse on the left represents all files including 49ers, the right oval represents all files including schedule, the cross section of the ellipse, and the green Place, representing all the files that contain the two words. You will see that this is helpful for narrowing the range of search results.
Vii. or
If you want to include one of these keywords in the search results, not necessarily all keywords, then use or in the middle of the keyword. This is useful for searching for keywords that have synonyms. For example, look for children OR Kids, whose search results are files that contain one of these keywords.

if the oval on the left represents all files including children, the right oval represents all files including kids, the cross section of the ellipse, and the green Place, representing all documents including this one or two words. You'll see this is useful for relaxing the range of search results.


Eight, NEAR


near is a form that is more specific than and. In many lengthy files, using and connecting keywords may not result in good results, since the query's two keywords may be in different parts or even unrelated. Near is different, not only to ensure that the search results include these two keywords, but also the two keywords adjacent or closer to the file.


nine, not or not


using uppercase and not before searching for keywords excludes files that include this keyword. What is the purpose of this? If you want to find information about Dieon Sanders and do not want the search results to contain information related to Dallas Cowboys, you can search with "Dieon Sanders" and not cowboys.


10, parentheses


And,near,or and not both have their respective roles, but if they are connected by parentheses, they have a priority. The parentheses in Boolean logic are similar to the parentheses in the mathematical equation, and they all have the function of limiting and rearranging the order in each variable. For example, if you want to find web-based Internet tutorial, you can use the Internet and (tutorial OR lesson). The results include the Internet and tutorial, or the Internet and lesson. That is, the parentheses here assign the key word Internet to the keywords in those two "OR".

The most common function of the
bracket is to surround two keywords that are separated by or, and then connect those keywords with and. There are, however, some upside down sequences and examples, but in some cases this can be of some use. For example, if you want to find information about gun control, you can use the gun control or legislation and gun, and the results will include "gun control" or files including gun and legislation. You can also refine your search results. Since the word "law" is synonymous with laws and regulations, you can enclose gun and legislation with parentheses, and in doing so, remove the "law" with the asterisk.


is such "gun control" or (gun and law* or legislation). Note: In Boolean representations or search engines, the left part of each bracket corresponds to the part on the right, which makes people feel confused (see how stupid they are!). ）


11, +require and–exclude


Some search engines are somewhat different for Boolean and and not. The plus sign that precedes the word (no spaces between two words) requires that the word be included in the file, and the minus sign is not required. Note: All the words in the file should be preceded by a plus sign, or even the first word. For example: +fraud +election to ensure that investigative is also in all files.


12, the limitation of Boolean selection


Some search engines have limited options for those with buttons or pull-down menus. For example, the file must include "all terms" (equivalent to all keywords with and) and the file must include "any terms" (equivalent to all keywords with OR).


13, date performance


Many search engines have a search feature that restricts the date the page is generated. When people continue to search for a specific topic, because it can not be limited by the last search results, this performance has undoubtedly provided a considerable convenience. This is also useful for searching current event topics.


14, restrictions on the specific part of the file search


some search engines can limit the specific part of the search, the most common is the file title and URL. For example, if you are looking for a title search, and if you want to find information about alternative dentistry, and you want to locate all the sites that have such a keyword in the title, you can use this syntax: title:alternative and dentistry.


also has a search for URLs, like if you're looking for Apple Computer's website, you can use url:apple so you can find websites about Apple Computer (and others).


15, the site specific part of the search restrictions


some search engines only allow you to search for "ethically the Web" or "newsgroups".


16, search restrictions on specific media


only Google and AltaVista allow the search for a wide variety of media files. These include: Audio, video, and pictures.


has a good chart in the library of the University of California, Berkeley, which is provided by a number of current and useful search engines, as well as links to how to use them.