No. As far as I know, any type of search of this kind fails. Why install/use an entire file manager like Nemo just for search? That’s why I sometimes use Catfish. Have a look at this post ( scroll to bottom) https://discuss.kde.org/t/trouble-with-dolphin-search/12322
That same “…ony” search will not pop up anything. Not in Dolphin, Milou…whatever.
