Perhaps you should try some spelling variations:
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
hanh vai » hanh vi, hanh va, hanh tai
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
tu san » thu san, tu can, vu san
tu ban » thu ban, te ban
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) OR (tu ban)) ky nang x ho. ((hieu van) or (thien van)) cam xuc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu ban)) ky nang x ho. ((hieu van) OR (thien van)) cam xuc va hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (tu ban)) ky nang x ho. ((hieu van) or (thien van)) cam xuc va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu san) OR (tu ban)) ky nang x ho. ((hieu van) or (thien van)) cam xuc va hanh vai cua tre*.