Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat soc » cham soc, chat hoc, chat doc
dinh cuu » dinh chi
va hanh » van hanh, va thanh, va danh
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
ma hoi » mai hoi, ma hoa, me hoi
soc va » hoc va, loc va, doc va
vi cuu » vi luu, vinh cuu

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 san ky nang ((ma hoi) OR (xa hoi)). hieu van chat soc va hanh ((vi cuu) OR (dinh cuu)) tre~.
• Adding a wildcard symbol may retrieve word variants: te san ky nang ((ma hoi) or (xa hoi)). hieu van chat soc va hanh ((vi cuu) or (dinh cuu)) tre*.