Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
hanh vai » hanh vi, hanh va, hanh tai
cao hoi » cau hoi, co hoi, cao hoc
hieu va » lieu va, hieu qua
xuc ban » duc ban, quoc ban, xuat ban
cuc ban » cua ban, cac ban, cuu ban
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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 sac ky nang cao hoi. ((hieu van) OR (hieu va)) cam ((xuc ban) OR (cuc ban)) hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang cao hoi. ((hieu van) OR (hieu va)) cam ((xuc ban) or (cuc ban)) hanh vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang cao hoi. ((hieu van) OR (hieu va)) cam ((xuc ban) or (cuc ban)) hanh vai cua tre*.