A search tool's database is simply an index of words and phrases associated together with URLs. Your job is to come up with words or phrases to match all of these index.
Read the instructions as most of the search engines have their own set of operators, delimiters and rules.
Choose the unusual word. Try to pick words that really define your idea.
Watch your spelling.
Think about synonyms.
Forget natural language. Try to focus on the key terms and phrases that identify your concept.
Don't forget to use NOT that let you exclude terms.
Use more than one search engine.
Always remember that searching is a process! Good luck!
Other Search Sites
These search tools should be able to help you finding whatever you want.
If you are not satisfied, you can try to access other
search sites. Hope that these will work for you!!