Explicit Phrase: Lets say you are looking for content about internet marketing. Instead of just typing internet marketing into the Google search box, you will likely be better off searching explicitly for the phrase. To do this, simply enclose the search phrase within double quotes.
Example: "Human Cloaning"
Exclude Words: Lets say you want to search for content about internet marketing, but you want to exclude any results that contain the term advertising. To do this, simply use the "-" sign in front of the word you want to exclude.
Example Search: Cinema Printing -Britney Spears
Site Specific Search: Often, you want to search a specific website for content that matches a certain phrase. Even if the site doesn’t support a built-in search feature, you can use Google to search the site for your term. Simply use the "site:somesite.com" modifier.
Example: "Mobile Entertainment" site:www.kooldesktop.com
Similar Words and Synonyms: Let’s say you are want to include a word in your search, but want to include results that contain similar words or synonyms. To do this, use the "~" in front of the word.
Example: "Currncy Rates" ~Forx
Specific Document Types: If you’re looking to find results that are of a specific type, you can use the modifier "filetype:". For example, you might want to find only Acrobat related to internet marketing.
Example: "Family Health" filetype:pdf
This OR That: By default, when you do a search, Google will include all the terms specified in the search. If you are looking for any one of one or more terms to match, then you can use the OR operator. (Note: The OR has to be capitalized).
Example: internet marketing OR advertising