|+ All search result must contain this word.
- No search result must contain this word.
* The wildcard, indicating zero or more characters. It can only appear at the end of a word.
" Anything enclosed in the double quotes is taken as a whole (so you can match phrases, for example).
Search result must contain "great", but cannot contain "bad".
"This is great"
The search result must contain this exact phrase.
Search result will match great and greatest.