Qucik search projects or filters

It would be very useful to have a quick search portlet option that would allow users to do key word searches on their filters (or on projects). As the current quick search searches everything, it gets less and less useful as we add more projects (for example, as all our products have dialog boxes in them, developers can no longer use the quick search to find out about dialog box related issues in their product as there is so much noise). Being able to search through filters from the dashboard would solve this.

I have attached a UI mock up to show what I mean!