Go to the "Answers" tab and select categories from the drop-down menu to narrow your search.
Use a plus (+) symbol in front of words to find only documents that contain those words.
Example: Type +wildlife +bear to find documents that contain both words wildlife and bear.
Use a minus (-) symbol in front of words to exclude documents that contain those words.
Example: Type wildlife -moose to find documents that contain the word wildlife but not moose.
Use uncommon words to retrieve documents with more focused results.
All search techniques search for different word forms such as singular, plural, or different verb tenses.