Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu van
vi cua » vai cua, di cua
tuc va » thuc va, truc va, tuc xa
tu cai » tu cac, tu can, tu cay
tu bai » tu ban, tu bat, te bai
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cai) or (tu bai)) ky nang x hoi. ((hieu ve) or (hieu va)) cam tuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cai) OR (tu bai)) ky nang x hoi. ((hieu ve) OR (hieu va)) cam tuc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cai) or (tu bai)) ky nang x hoi. ((hieu ve) or (hieu va)) cam tuc va hanh vi cua tre*.