multiple search using ajax

hi ,

I have an application to search table entries using ajax helper:
the table tnries are :

name resolution framerate bitrate :

in controller i have code like:

@streams= Stream.find(
         :all,
         :conditions => [
           ( ["(LOWER(name) LIKE ?)"] * terms.size ).join(" AND "),
           * terms.flatten
         ]
       )

1)using this i am able to only the name entries in the name
column.Here if i want to fearch for multiple entries eg :name and
resolution .how can i do that.
2)and i have tags to the each table entry if i use tag name as search
entry wher exactly i have to modify the code?

can give me some to proceed.

thanks
srikanth