Keep your search simple—use only a few distinct search words.
Leave out common words such as: the, of, to, for; also, omit single
digits or letters.
Narrow Your Search:
Exact Phrase: Use quotation marks to find phrases.
Broaden Your Search;
Use "OR" between
key words to find all references to one or both key words. Example:
"ulcer OR sore".(OR must be capitalized).
For more information on advanced searches, select Advanced