Well , I think what he is talking about is the various tips and tricks for searching google effectively , like some times we wish to find a file then we can do that directly without having to browse through a list of pages .
For example : Phrase your question in the form of an answer. So instead of typing, "What is the average rainfall in the Amazon basin?", you might get better results by typing "The average rainfall in the Amazon basin is."
Similarly, put a hyphen right before any word you want screened out. If you're looking up dolphins, for example, you'll have to wade through a million Miami Dolphins pages unless you search for "dolphins -Miami."
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