Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, me hoi
va cam » va cham, va cac, va cao
tuc va » thuc va, tuc xa, duc va
vi cua » vai cua, di cua

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: cu cao ky nang ((ma hoi) OR (ma hoa)). hieu va cam ((tuc va) OR (truc va)) thanh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: cu cao ky nang ((ma hoi) or (ma hoa)). hieu va cam ((tuc va) or (truc va)) thanh vi cua tre*.