Use quotation marks around a string of words to search for a phrase
For example, here's how to ensure that your search will look for all three words (oil in iraq) occurring together.
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Advanced Search "Boolean Operators"
Use AND to search for results where both terms exist anywhere in the text of a single document.
For example, here's how to ensure that your search will look for a high occurrence of both terms appearing anywhere in the text of a document.
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Use OR to search for results where either term exists anywhere in the text of a single document.
For example, here's how to ensure that your search will look for a high occurrence of either term appearing anywhere in the text of a document.
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Use NOT to exclude results containing a given term.
For example, here's how to ensure that your search will look for a high occurrence of oil but will exclude sources that also contain the term Iraq.
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Wildcard Searches
(Note: You cannot use * or ? as the first character of a search)
Use ? to search for single character wildcard search.
For example, here's how to search for "test" or "text".
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Use * to search for multiple character wildcard search.
For example, here's how to search for "test", "tests", or "tester".
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