By default, all search terms are optional.Objects that contain the terms are rated higher in the results. For example, wiki forum will find:
Add a plus sign ( + ) before a term to indicate that the term must appear in results.
Add a minus sign ( - ) before a term to indicate that the term must not appear results.To reduce a term's value without completely excluding it, use a tilde.
Use parenthesis ( ) to group terms into subexpressions.
Use double quotes ( " ) around a phrase to find terms in the exact order, exactly as typed.
Add an asterisk ( * ) after a term to find objects that include the root word. For example, run* will find:
Add a tilde ( ~ ) before a term to reduce its value indicate to the ranking of the results.Objects that contain the term will appear lower than other objects (unlike the minus signwhich will completely exclude a term).
Add a less than ( < ) or greater than ( > ) sign before a term to change the term's contribution to the overall relevance value assigned to a row.