Search engines can be considered as a cluttered resume database. Boolean Operators are used to connect and define the relationship between your search terms. When searching electronic databases, you can use Boolean operators to either narrow or broaden your record sets. The three Boolean operators are AND, OR and NOT.
AND – The AND operator delivers results with the terms you requested.
OR – The OR operator delivers results with either of the terms you requested.
NOT – The NOT operator will not deliver certain words in your search results.
* – The * operator is a wild card. Adding a wild card will find words contain the wild card. For example program* will help so you do not have to run separate searches for words similar like: programmer, programming, program.
(java or j2ee or jee) and (hibernate or spring)
You ccan use “” for for those word who contain sapce.
(“java developer” or “java programmer” or “java constant”)
And you can also use * for those word who extended,
(“QA” or “Quality Analyst” or “Quality eng*”)
I hope it’s helpful for you..