Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, kho tang
mai hoi » mai khoi, dai hoi, lai hoi
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
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.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky tang ((mai hoi) OR (xa hoi)). ((hieu ve) OR (hieu van)) cam xuc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky tang ((mai hoi) OR (xa hoi)). ((hieu ve) OR (hieu van)) cam xuc va hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang ((mai hoi) OR (xa hoi)). ((hieu ve) OR (hieu van)) cam xuc va hanh vai cua tre*.