A keyword search can be conducted on a word or a phrase, or a combination of words, phrases and boolean operators.
Some of the boolean search operators and examples of each, that can be used in the Keyword Search are listed below.
This will return documents that may have hydroelectric or dam, but will return a document that has hydroelectric
and dam in the same document.
commerce and natural gas are in the same paragraph.
interstate commerce and natural gas are in the same sentence.
A document must contain one or the other, but not both. This will return documents that have hydroelectric or dam,
but will not return a document that has hydroelectric and dam in the same document.