If you are searching for many terms but one is vital to the
search, you can use the plus sign to require that term to appear in returned
documents.
Plus Sign (+)
Use a plus sign immediately before a word or phrase to
require the word or phrase in relevant documents. Documents with optional words
have higher scores than documents containing only the required word. For
example, to find pages that contain the word leave and possibly the phrase jury
duty, enter:
