To increase the number of useful results you get from your searches, it is best to always keep in mind the 3 golden rules for searches:
1) Restrict, 2) Expand, and 3) Obtain.
Today, we’ll finish this series of 3 entries with the last one:
3) Obtain
Get use to using “boolean” commands (named after George Boole, the 19th-century mathematician who founded the field of symbolic logic) to narrow your search down to reasonable numbers and obtain the best results. The three most commonly used are AND, OR and AND NOT:


