Keyword Search matches your inquiry against all fields.
Leave the other search fields blank.
Exact Field Match searches for the exact string you enter.
EXAMPLE: You search for the meaning of the abbreviation "AB". Exact Field Match checked returns only the abbreviation AB, unchecked it returns all records including the string AB, like ABB, ABF etc.
If you don't get any results feel free to e-mail us. Usually we are able to help you immediately.