1. If you search for 10 minutes and don't find anything, contact a librarian!
2. If you are not finding anything, think about your keywords. Are you in a library database that covers your topic? Are there other words to describe your topic? Is this a topic that no one has written about?
3. The more keywords you put in, the fewer results you will find.
4. If you are finding too many results, consider adding a keyword. What aspect of this topic are you most interested in?