First of all, I don't know how DTube's search system works and maybe it's just not possible to do it otherwise, but I'm curious.
The thing is, when you search for something on DTube you only get 10 results shown for your search. In a way, it's impossible to search something specific. Some videos will never appear and thus no one will ever watch them, even if you search for the exact title or tags of the video.
Can and will that change in the future? Please enlighten me, 'cause right now I don't see how this can be viable.
Anyway, hope you all have a great day! :)