Finds documents containing all of the specified words or phrases. Peanut AND butter finds documents with both the word peanut and the word butter.

Finds documents containing at least one of the specified words or phrases. Peanut OR butter finds documents containing either peanut or butter. The found documents could contain both items, but not necessarily.

Excludes documents containing the specified word or phrase. Peanut AND NOT butter finds documents with peanut but not containing butter. NOT must be used with another operator, like AND. Search engine does not accept 'peanut NOT butter'; instead, specify peanut AND NOT butter.

Finds documents containing one of the specified words or phrases or not containing other word. Peanut OR NOT butter finds documents which contain Peanut or not containing butter

Quotation marks are used to denote exact phrases. For example, a search on "New York Times" will match only documents containing the words as an exact phrase. It will not find pages with the words used in a different order, such as "New times in York!"

Braces are used to denote folders. For example, a search on "CPAN/objects" will match only documents stored in www.servername.com/currentlocation/CPAN/objects