Perhaps you should try some spelling variations:
ve triet » va trien, su triet
ban hanh » ban hang
cham xuc » cam xuc, chat xuc, cham soc
ve cham » va cham, ve chat, vu cham
su sach » so sach, vu sach
vu nang » vuc nang, va nang, vu dang
sach vu » sach va, sach tu, sach uu
hieu ve » hieu va, hieu van
o hoi » co hoi, o hoc, o hai
ve ve » de ve, va ve, ke ve

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach vu nang ((o hoi) or (xa hoi)). hieu ve cham xuc ((van ban) or (ban hanh)) ve ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach vu nang ((o hoi) OR (xa hoi)). hieu ve cham xuc ((van ban) OR (ban hanh)) ve ve triet.
• Adding a wildcard symbol may retrieve word variants: su sach vu nang ((o hoi) or (xa hoi)). hieu ve cham xuc ((van ban) or (ban hanh)) ve ve triet*.