Ferret search issue

Hi Guys,

I want to have a ferret search on table community  in "advance

search" section. Here if I give “information technology” as search
string it has to index through industry field of community, so we can
index through that by giving in fields list.

Also in “normal search” I want to search through communities based on
community name only, but not industry. But as I have given “industry”
for indexing it is searching industry as well.

So the main issue is in advance search I want it to search through
industry only, and in normal search I want it to search through
community name only. Please guide me, as to how can I do it, or give me
some code snippet.