To reduce the number ideas filtered by search, the keywords should be applied with 'and' logic by default.

At the moment, the number of findings increases if you add more key words.

But to make ZenRep a success, it's important to reduce the number of findings to come out with max 10-20 search results to allow the user to find already existing ones for voting instead of entering a new one.
If the search result exceeds 20+, it would be to time consuming for checking all the results and as result, ZenRep would end-up with redundant requests (idea) as in SWAT.