Perhaps you should try some spelling variations:
hieu ve » hieu va, hieu van
cac luc » cau luc, coc luc, cac nuoc
va dinh » van dinh, va kinh, va tinh
dinh tu » danh tu, dinh cu, tinh tu
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
tu cua » hu cua, vu cua
x hoi » o hoi, x ho, 5 hoi

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: te sac ky nang ((x hoi) OR (xa hoi)). hieu ve cac luc va dinh tu cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((x hoi) or (xa hoi)). hieu ve cac luc va dinh tu cua tre*.