Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doanh van » doan van, doanh va, doanh ban
hieu van » hieu va, thien van, lieu va
thuoc ma » hoc ma
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van lam » van nam
duoc ma » duoc lam
van cua » vang cua, ban cua, dan cua
te cac » ve cac, te cao, de cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) or (tu cac)) ky lang xa hoi. hieu van lam ((thuoc ma) OR (duoc ma)) doanh van cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (tu cac)) ky lang xa hoi. hieu van lam ((thuoc ma) OR (duoc ma)) doanh van cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) or (tu cac)) ky lang xa hoi. hieu van lam ((thuoc ma) OR (duoc ma)) doanh van cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te cac) or (tu cac)) ky lang xa hoi. hieu van lam ((thuoc ma) OR (duoc ma)) doanh van cua triet*.