Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hoc hoi » hoc khoi, hoc hoa, hoc noi
hoi hoi » hoi hoc, hoi doi, doi hoi
qua cam » qua cham, qua cac, qua ca
cam tuc » cam xuc, cam tu, nam thuc
va minh » van minh, vua minh, va kinh
minh ve » dinh ve, minh va, kinh ve
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa
ve va » ve van, te va, ke 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: su sac ky nang ((hoc hoi) OR (hoi hoi)). hieu qua cam tuc va minh ve va triet~.
• Adding a wildcard symbol may retrieve word variants: su sac ky nang ((hoc hoi) or (hoi hoi)). hieu qua cam tuc va minh ve va triet*.