Boolean Search Operators for the search engines:
Boolean |
Definition |
+ |
Display only mandatory word, eg. +Coventry |
- |
Excludes the word, eg. +Coventry -University |
< |
The word that follows has a lower relevance than other words. |
> |
The word that follows has a higher relevance than other words. |
() |
Used to group words into subexpressions. |
~ |
The word following contributes negatively to the relevance of the row (which is different to the '-' operator, which specifically excludes the word, or the '<' operator, which still causes the word to contribute positively to the relevance of the row. |
* |
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. eg. "Hello World" will match the entire sentence "Hello World" |