Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, dieu vu
hieu su » hieu sau, tieu su, hieu so
soc van » hoc van, sac van, soc dan
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
oc van » hoc van, luoc van, quoc van
anh ve » hanh ve, anh va, anh viet
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: tu sac ky nang xa hoi. ((hieu vu) OR (hieu su)) cham ((soc van) OR (oc van)) anh ve va triet~.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. ((hieu vu) or (hieu su)) cham ((soc van) or (oc van)) anh ve va triet*.