The current search system used by Dolphin is far from being optimal. I wouldn't want to sound rough but the search system, when works, it shows just partial results, sometimes it doesn't work at all so that I ended up replacing search with filter, which is a good compromise most of times. At the same time we have KFind (which is great), it supports all sort of advanced search options, always finds every possible result and, most important, I never seen it crashing. I was wandering, did anyone contemplate the the idea to truly integrate it into Dolphin? (I mean not like it is now: use other search tools or similar) but to get the result from KFind when someone searches using the input text element from Dolphin (starting from the current directory).
*** This bug has been marked as a duplicate of bug 391677 ***
on the topic, Nate G. wrote: "As for the feature itself, for the past few years I'd been opposed to this, on the basis that people should just use the built-in Baloo-based search instead. But unfortunately the requests keep coming in, and there are use cases that Baloo doesn't work for (e.g. on external disks), so there does seem to be a need, or at least a desire. " So why is it that users like you oppose the view of the main guys? Why can you not accept the basis of decisions made for you by KDE, see above? I too suggested it and resigned to never see it implemented on these grounds. So its small wonder, users place the patches to Dolphin offsite and don't contribute via Phabricator. Just not worth to go against the opposition by superiors.
https://phabricator.kde.org/D22594