Search Tips
To get more specific search results, try using the following tips:

Check spelling Make sure your search terms are spelled correctly. Sound-Alike Matching will make the search engine attempt to find words that sound similar to your search terms, but it's always best to try to spell the search terms correctly.
Use multiple words
Example: our free product 		Using multiple words will return more refined results than a single word. For example, typing MAGNUM SCANNER will return more relevant results than typing just MAGNUM. (Keep in mind that relevant results are returned even if they don't contain all query terms.)
Use similar words
Example: safe secure privacy security 		The more similar words you use in a search, the more relevant your results will be.
Use appropriate capitalization
Example: Search Template Reference 		Capitalize proper nouns, and remember that lower-case words will match any case. For example, typing search will return all documents containing the words search, Search, and SEARCH. Typing Search, however, will instruct the search engine to look only for the capitalized word.

Use quotation marks
Example: "calibration sheet"		 Use quotation marks to find words which must appear adjacent to each other, for example, "calibration sheet." Otherwise, the search results will include the word our, pledge, to, and the word you, but not necessarily in that order. The words may appear anywhere, and in any order, within the document.
Use plus (+) or minus (-)
Example: +"cad software"		 Use a plus sign when your search term or phrase must appear in the search results. Use a minus sign to indicate undesirable term(s). The plus sign tells the search engine that a certain word or phrase is required in the search results, and a minus sign indicates that a word or phrase must be absent in the search results.

Note: A phrase must be contained within quotation marks. Leave no spaces between the plus or minus sign and the term.
Use wildcards
Examples:
wh*
"wh* are"
415-*-*

A wildcard character can be used to substitute for any other character or characters in a string. Wildcard searches can expand the number of matches for a particular request.

The asterisk (*) substitutes as a wildcard character for one or more characters, and the question mark (?)substitutes as a wildcard character for any one character.

The "*" The "?" wildcard represents a single chracter match.

For instance, searching for wh* will find the words what, why, when, whether, and any other word that starts with wh.
Searching for *her* will find the words here, whether, together, gathering, and any other word that contains her anywhere in the word. Searching for m? will find me, my, mo, ms, m2... any two character string that starts with "m".

Wildcards may be combined with the standard plus (+) and minus (-) modifiers, quotes for phrases, as well as the field search specifiers.
+wh* -se*ch will find all pages which have a word that starts with wh and which does not contain a word that starts with se and ends with ch.
"wh* are" will find the phrases where are, what are, why are, etc.