Perhaps you should try some spelling variations:
hieu hieu » hien hieu, hieu hien, thien hieu
cay phoi » cap phoi, cay cho, gap phoi
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
hieu cac » hieu luc, hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cuu tre, cua triet, dua tren
tay hoi » tay ho, tao hoi, tay thai
xuc van » duc van, luc van, vuc van
tu bai » tu ban, tu bat, te bai
bai ky » ban ky, sai ky, bac ky
cua te » cua tu
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 bai ky va ((cay phoi) OR (tay hoi)). hieu hieu cac xuc van hanh vai ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu bai ky va ((cay phoi) OR (tay hoi)). hieu hieu cac xuc van hanh vai ((cua tre) or (cua te))~".
• Adding a wildcard symbol may retrieve word variants: tu bai ky va ((cay phoi) OR (tay hoi)). hieu hieu cac xuc van hanh vai ((cua tre) or (cua te))*.