Description
This article is from the Information
Research FAQ, by David Novak david@spireproject.com with
numerous contributions by others.
44 Boolean operators - Search Tactics (Information Research)
Changing tack, searching for multiple words calls for "and, or, not"
concepts. I want this word and that word, but not another word. It is
simple enough. Many of the search engines allow for this with the
-sign, and commercial databases often add brackets. Use of the not
symbol is frowned upon in textbooks (too easy to dismiss information
you are interested in it is said), but the 'and & or' is absolutely
necessary for complex questions like I want [(spaghetti or noodle) and
pasta] or (Italian and cuisine). With most internet search engines, but
not all commercial searches, you will find 'and' is assumed.
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