To filter google offers many operator like "intitle", "inurl" and double quoted or exact match. These are really helpful
I would really appreciate if these major sites provide one more major feature "Categorized search".
If I am a C++ programmer and I am searching for boost then it should show me boost library and not a health drink. For this to happen, these search engines must provide categorized search. I should be able to provide category for search. In this case category can be Computer->Software->Programming. This will ensure I will get results related to programming only.
How to achieve this?
While submitting sites to search engine, they must accept category too. That is which category this site belongs too. This will enable better and relevant search result. This will also enable better add target. When I am searching for BOOST the programming library I will not get adds related to health drink.
On google I get millions of results, but not all are really relevant. I think this will really help to improve and also add revenue.