A primer on Google syntax.
Simple Queries:
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REQUIRED:
www.google.com/search?
For one query apend q=[string value]
For two apend q=[string1]+[string2]
And likewise to expand the query.
Selective Syntax:
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To require one string value apend q=%22basic%22
Example:
www.google.com/search?q=visual+%22basic%22
To exclude one string value from a query apend -[string]
Example:
www.google.com/search?q=visual+basic%22basic%22-open%20source
(Note %20 represents a space)
Inclusive Syntax:
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Append +OR before any alternative string
Example:
www.google.com/search?q=visual+basic%22basic%22+OR+GNU
Further information can be found at:
http://www.google.com/help/refinesearch.html