it is better to use only one word.
it is better to write a complete sentence.
it is better to use as many significant words as possible
Better looking web sites are more likely to have information that is correct.
a single search engine like Google.
a meta search site like Dogpile
a directory search like Yahoo
You check to see if the information is accurate
You check to see if the author has been objective
You confirm that the author or site an authority on the subject.
You check to see if the information is current
You do as many of the above as possible.
An article that only presents one point of view or omits facts is biased.
and, or, not
or, maybe, not
and, or, maybe
maybe, not
Boolean words
content words
keywords
important words
With so much information on the Internet you are more likely to find what you need.