@SeaHiatus aren't they already a part of the Martial Arts Genre?
Wuxia is but not the other two (xianxia and xuanhuan aren't just marital arts).
Curious this is series finder on sh or maybe nu? I looked at sh but can't see those genres listed on sh.
Edit: the picture you had was of the NovelUpdates series finder. Its different from ScribbleHub's series finder, that's why.
If you want a genre implemented that you don't see on here (as in on ScribbleHub), please state that genre in the Feature Request > Genre Implementation thread.