Perhaps you should try some spelling variations:
tang tai » hang tai, dung tai, sang tao
ban hanh » ban hang
ky tang » ky nang, ky dang, kho tang
tai hoi » tai khoi, dai hoi, tai hai
cua tre » cua te, cuu tre, cua triet
ve ham » ve cham, ve am, ve ha
le ham » le pham, le ha, le hai
so ban » sao ban, so bang, co ban
vi cua » vai cua, di cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky tang tai hoi. hieu ((ve ham) OR (le ham)) so ban hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu cac ky tang tai hoi. hieu ((ve ham) OR (le ham)) so ban hanh vi cua tre*.