Search in Dolphin

[Jim]

For a year or more, the search option in Dolphin hasn't been working 
right.  I tried several times to look up how to fix it, but nothing I 
found worked until tonight.  I followed the instructions I found, and 
miracle of miracles, it's working now. I'll pass it along in case anyone 
else  has had this problem.

https://www.ryananddebi.com/2015/07/13/linux-getting-find-working-in-dolphin-on-kde-linux-mint-and-kubuntu/