Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
nang ma » tang ma, sang ma, nang cao
ve cham » va cham, ve chat, vu cham
tuc ban » thuc ban, truc ban, tu ban
luu tre » luu tru, cuu tre, luy tre
tu cao » cu cao, tu cac, vu cao
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac
vi luu » vi lua

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu cao ky nang ma hoi. hieu ((ve cham) OR (ve cac)) tuc ban thanh vi luu tre~.
• Adding a wildcard symbol may retrieve word variants: tu cao ky nang ma hoi. hieu ((ve cham) or (ve cac)) tuc ban thanh vi luu tre*.