1,
Basic Operators
- Or word or "|" character
- Double quotation marks (""): For exact phrase search
- Plus sign (+): to force a search on
Word
- Minus sign (-): omitting pages
Certain keywords
- Tilde (~) Character: synonym search
- Asterisk (*) character: wildcard search
- Double periods (...): number range
- Parenthesis (): Group
Detailed use: http://www.googletutor.com/google-manual/web-search/adding-basic-operators/
2, advanced Operators
- Site:
- Inurl:
- Allinurl:
- Intitle:
- Allintitle:
- Intext:
- Allintext:
Detailed use: http://www.googletutor.com/google-manual/web-search/adding-advanced-operators/
3
, Specific Web Search Operators
- Info:
- Link:
- Related:
- Cache:
Detailed use: http://www.googletutor.com/google-manual/web-search/using-page-specific-web-search-operators/
4, the Google directory
Http://directory.google.com
Detailed use: http://www.googletutor.com/google-manual/web-search/using-the-google-directory/2010-10-15
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