Here are a few more tricks for effective searching:
Use the minus sign ( - ) to screen out whole categories of webpages that you don't want. Maybe you want scholarly information and you know that it's unlikely that you'll find it on a commercial website.To get rid of all commercial websites, add this to the end of your search term: '-site:.com'.
For even more tips and tricks, see the Unofficial Google Advanced Search.
Writing a search statement
Keep a list of synonyms for possible keywords to be used in catalogue and database searching, and keep track of which ones work best where. Then consider related terms. Your keyword “bank” should grow as your knowledge base expands.
Boolean searching: combining terms for efficient searches:
Truncation, stop words, and phrase searching
You may use the following symbols in the online catalogue and most databases to narrow your searches:
"Department of Education" "Common Core"