the baloosearch functionality in Dolphin does not order search results by relevance, as it does in the Baloo Runner uses by KRunner and Kickoff. As a result, search results are ordered typically by name, which makes the search results nonsensical, especially when there are a lot of results. It should order the results using the same order that the command-line `baloosearch` program uses--which is by relevance.
There is no such thing as "relevance". A file either matches or it does not. baloosearch orders by mtime. To get the same results in dolphin, order by modification time (though dolphin seems to only order with minute precision).