Of the hundreds of search engines available, "Google" seems to be the most commonly used; Whether its because their free email application Gmail dominates the market of because of the ease of access. Google, as well as most other search engines have advanced ways to search. By using "Operators", which are commands, it can limit or narrow your search significantly. The follow is a list of the more commonly used google operators. Hundreds of operators exist for google and most search engines have their own.
site: Limits the search results to a specific site
“ ” Quotation marks will only give you the exact term. Anything not identical will not show up.
AND Combines two words and shows results for both.
OR Search for item 1, item 2 or both .
* Asterisks are Wildcard for words in a search term
- Exclude results. Searching
$ Search for a specific price “New TV” $499 (See two operators were used)
cache: Most recent version of a website archived by google.
filetype: Search the web for any document or file type.
filetype:pdf “confidential” or ext:pdf “confidential”
related: Search for sites related to a the target site
intitle: Find pages with a term in the title of the page.
inurl: Find pages with a term in the pages url
map: Shows search results with a map.
*Don’t forget you can use multiple operators within the same search