Using Boolean Search Operators

In Boolean search mode words are searched exactly as they are typed. Use the asterisk wildcard character (*) to include alternative forms of wo rds, plurals, etc. See below for more information.

None (space character)
' or '

A leading plus sign indicates that this word must be present in each row that is returned.

A leading minus sign before a word indicates this word must not be present in search results

A leading tilde acts as a negation operator, causing the word's contribution to the row's relevance to be negative. This is useful for marking "noise" words. A row containing such a word is rated lower than others, but is not excluded altogether, as it would be with the - operator.

The asterisk serves as the truncation (or wildcard) operator. Unlike the other operators, it should be appended to the word to be affected. Words match if they begin with the word preceding the * operator.

A phrase enclosed within double quote (""") characters returns only results that contain the phrase literally, as it was typed.

( )
Parentheses group words into subexpressions. Parenthesized groups can be nested.