The following characters have a special meaning. Put them next to a word without a space between. |
" " | encloses a sequence of words so that the sequence is searched as a whole. |
+ | The following word must appear. |
- | The following word must not appear. |
~ | The following word should not appear but may appear. |
< | The following word should appear but is not as relevant as other words. |
> | The following word should appear and is more relevant than other words. |
( ) | groups words together so that one of the prefixes above can be applied to the whole group. |
* | is a wildcard behind a word, representing null, one or several arbitrary characters. |