Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
danh vi » hanh vi, dinh vi, danh di
toc sac » toc sach, toc san, hoc sach
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
luc va » duc va, tuc va
sac ky » cac ky, sai ky
loc va » hoc va
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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: toc sac ky nang x hoi. hieu va cam ((luc va) OR (loc va)) danh vi ((cua te) OR (va triet))~.
• Adding a wildcard symbol may retrieve word variants: toc sac ky nang x hoi. hieu va cam ((luc va) or (loc va)) danh vi ((cua te) or (va triet))*.