So you successfully beat 3 tier 3 bosses by yourself? That's great! I don't think all of them can be done unless the stars are in alignment (very high level/perfect counters, no game lag or glitches....)
As for TM, I got exactly one, but that was on my 3rd or 4th raid, nothing since.... I think TM and the other good stuff (especially rare candy) is not as common as it was at the beginning.
Good luck and congrats on the solos! I tried a Jolteon and failed miserably (but came close with a Vape and will keep trying).