Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » hieu qua
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 ly » sac ky
va xay » va xac
luc va » duc va, tuc va
loc va » hoc va

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 ly va xay hoi. ((hieu va) OR (lieu va)) cac ((luc va) OR (loc va)) hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ly va xay hoi. ((hieu va) or (lieu va)) cac ((luc va) OR (loc va)) hanh vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu sac ly va xay hoi. ((hieu va) or (lieu va)) cac ((luc va) OR (loc va)) hanh vai cua tre*.