Most of my DTube videos don't show up in the search engine. What can I do about this?

So since discovering DTube, I've decided to upload the best content of my YouTube onto this platform. The problem is, only 3 of my 19 videos posted actually show up when I search for them, or even my username. Is there a way to fix this problem?

My DTube channel is here: https://d.tube/#!/c/mechaghostman2