Search operators - Fluid Topics - Latest

It is possible to use the following prefix operators to overwrite the default filtering role of a term or sequence:

• Use - to exclude a term or terms from the query.
• Use + to make a term, and any term with the same stemmed form, mandatory (for example, installation and installations).
• Use quotes to make an exact term mandatory (for example, installation but not installations).
• Use ? to make a term optional.

A character matching one of these operators in the query field becomes an operator if:

• It is not in a exact search sequence.
• A blank space precedes it (or is the first term in the query).
• Either an alphanumeric character or the starting double quote of an exact search sequence follows it without space.

Otherwise, these operators remain regular tokens and in most cases are ignored terms.