Today, without intending to discuss with the students, the use of Baidu search, the different keyword sequence, the search results have an impact. The classmate said there was no effect, the reason is that he did the experiment, and my memory is influential. So the use of leisure experiments, the conclusion is influential. The two words I used to test were "data" and "steganography". See the picture in detail
Wildcard
Through the screenshot can be concluded that whether the use of space to divide keywords, or through the logical operator segmentation, for the input of the two keywords, when the order is not simultaneously obtained by the search results are different. I think that my classmate test may be coincidentally, or Baidu modified the relevant algorithm, due to this aspect of the research, a deeper layer of things will not be dug out. Google hasn't done any testing yet, and will test it later with a blank.
So, for a person using a search engine, a reasonable order of keywords is very important. And the best of their own participle, do not rely too much on Baidu's own word breaker system.