Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lam » thanh lap, hanh lam, thanh nam
vu khach » vu khanh, vu khac, vay khach
khach ky » hanh ky, thanh ky
hieu van » hieu va, thien van, lieu va
van cam » van nam, van lam, van cau
lam cua » nam cua, lam chat
nang o » nang co, nang ho, nang ro
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach ky nang o hoi. hieu van cam ((xuc va) or (luc va)) thanh lam cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ky nang o hoi. hieu van cam ((xuc va) OR (luc va)) thanh lam cua triet.
• Adding a wildcard symbol may retrieve word variants: vu khach ky nang o hoi. hieu van cam ((xuc va) or (luc va)) thanh lam cua triet*.