Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
ve triet » va trien, su triet
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
y nang » ky nang, ly nang, v nang
o hoi » co hoi, o hoc, o hai
vi ve » va ve, gi ve, ve 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 y nang ((o hoi) or (xa hoi)). hieu ve chat xuc ((van ban) or (ban hanh)) vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ((o hoi) OR (xa hoi)). hieu ve chat xuc ((van ban) OR (ban hanh)) vi ve triet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang ((o hoi) or (xa hoi)). hieu ve chat xuc ((van ban) or (ban hanh)) vi ve triet*.