Perhaps you should try some spelling variations:
hieu ve » hieu van
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
va dinh » van dinh, va kinh, va tinh
dinh vi » dinh ve, dinh viet, dinh tri
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te san
te cac » tu cac, ve cac, te cao
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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: ((te sac) OR (te cac)) ky nang x hoi. ((hieu ve) OR (hieu va)) cau truc va dinh vi cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te cac)) ky nang x hoi. ((hieu ve) or (hieu va)) cau truc va dinh vi cua tre*.