How may I adjust the search to "accurate search"?

[silvanfay]

I am so puzzled. When i search a word, it seems lots of words related to it come out, I wonder how I may adjust the search to accurate search of headword? When I search "petite", not full text search, just a regular search, then many headwords come out, such as "bantam", "short", "peter", then the program is unresponsive. How may I fix this problem please? Many many thanks!!!!