Perhaps you should try some spelling variations:
ban hang » ngan hang
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cham so » cham soc, cham o, ham so
hang vi » hang va, hanh vi, hang di
cua tre » cuu tre, cua triet, dua tren
ma hoi » mai hoi, xa hoi, ma hoa
so ban » sao ban, so bang, co ban
cua te » cua tu

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 cac ky tang ma hoi. hieu ve cham so ban hang vi ((cua tre) OR (cua te))~.
• Adding a wildcard symbol may retrieve word variants: tu cac ky tang ma hoi. hieu ve cham so ban hang vi ((cua tre) or (cua te))*.