Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
cua tre » cua te, cuu tre, cua triet
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
xay hoi » xa hoi, cay phoi, gay thoi
tay hoi » tay ho, tao hoi, tay thai
san ky » sang ky, van ky, dan ky
ve cac » vien cac
xuc va » duc va, tuc va, luc va
tu san » thu san, tu ban, tu can
ky va » ly va, ke va, my 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 san ky va ((xay hoi) OR (tay hoi)). hieu ((ve cac) OR (va cac)) xuc va hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky va ((xay hoi) OR (tay hoi)). hieu ((ve cac) or (va cac)) xuc va hanh vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu san ky va ((xay hoi) OR (tay hoi)). hieu ((ve cac) or (va cac)) xuc va hanh vai cua tre*.