You can broaden your search by
specifying that the search look for similar words. This enables the
search to include minor grammatical variations for a word or
phrase. For example, if you type the word "add" in the keyword
search box, SMS Help will search on the terms "add," "adds," and
"added."
In the navigation pane of the Help Viewer, click the Search tab.
Type a word or a phrase.
Select the Match similar words check box.
Click List Topics to display a list of the topics that
contain the words or phrase, or the like words or phrase you
specified.
In the list, double-click a topic title to display the help
topic.