Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
hieu ve » hieu va, hieu van
cao duc » dao duc, cao suc, giao duc
te sac » te sach, te cac, te san
ve cao » va cao, ve bao, ve 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 sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cao duc va ((thanh hoa) or (thanh pho)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cao duc va ((thanh hoa) OR (thanh pho)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cao duc va ((thanh hoa) or (thanh pho)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cao duc va ((thanh hoa) or (thanh pho)) cua triet*.