Search Help

Constructing a Search

Our search capability supports the following operators (see examples below):

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

-  A leading minus sign indicates that this word must not be present in any of the records that are returned.

When neither + nor - is specified, the word is optional, but the records that contain it are rated higher in relevance (see more samples below).

*  Wildcards. 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.

Exact phrase. A phrase that is enclosed within double quote (‘"’) characters matches only records that contain the phrase literally, as it was typed.

> <  Greater than and less than. These two operators are used to change a word's contribution to the relevance value that is assigned to a record. The > operator increases the contribution and the < operator decreases it. See the examples following this list.

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

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

Search Examples

The following examples demonstrate some search strings.

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