Here are some tricks of the trade to make your searches more effective (these work in most databases):
- Use quotes to search for an exact phrase or name
- Use an asterisk with word roots to expand beyond an exact word
Searching in Google? Try these tricks:
- Search for a specific file type - filetype:pdf
- Search within a particular website - site:nytimes.com
- Look for related words with a ~

From: Hack College, Get More Out of Google