| OPERATOR EXAMPLE
| FINDS PAGES CONTAINING...
| Example
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| enzyme genome
| The words enzyme and genome
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| enzyme OR genome
| Either the word enzyme or the word genome. The word "OR" must be uppercase
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| genome
| Either the word enzyme or the word genome. The "|" symbol does not need to be separated by spaces from adjacent words.
| align="right" cellspacing="5" cellpadding="5" frames="border" rules="all"|
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| enzyme -genome
| The word enzyme but NOT the word genome
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| +enzyme
| Only the word enzyme, and not the plural or any tenses or synonyms
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| biology ~lab
| biology info for both the word lab and its synonyms: lab, laboratory, etc.
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| define:genome
| Definitions of the word genome from around the Web.
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| red * green
| The words red and green separated by one or more words.
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| filetype:pdf
| Find documents of the specified type
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| ext:pdf
| Find documents of the specified extension
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| allintext:restriction enzyme
| All query words must appear the in text of the page.
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| intext:restriction enzyme
| The term "restriction" must appear in the text of the page.
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| allintitle:restriction enzyme
| All query words must appear the in title of the page.
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| intitle:restriction enzyme
| The term "restriction" must appear in the title of the page.
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| base-pair
| all forms of the term, whether spelled as a single word, a phrase, or hyphenated
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| 1..5
| Specify that results contain numbers in a range by specifying two numbers, separated by two periods, with no spaces
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