Hook_search_execute();
I don't question that the suggested answer (from NishantP) might answer the question. But the "Goto ... &amp; open taxonomy.module ..." looks like hacking this module. If you just do that, then be prepared for the issue potentially coming back in the next module upgrade (because such upgrade might wipe out your edit).

As an alternative, how about filing an issue for this module (if such issue doesn't exist already), and attach a patch to it corresponding to the suggested edit (hack). It might (and probably will) get accepted to be committed to the module in the next reease of it). From then on no more issue with future upgrades of that module. And if it doesn't get accepted, you can still use that same patch to re-apply in further module upgrades (assuming you don't have to re-roll them then).

Edit: looks like NishantP's answer is no longer there (deleted?). Not sure (yet) if that implies that I should now also delete "my" answer. Since I'm sure there was something in it like that "Goto ... &amp; open taxonomy.module ...", I'll leave my answer here for now, just in case anybody else ever has similar hacking-suggestions ...