Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh doi » thanh loi, thanh moi, thanh do
va thanh » gia thanh, ban thanh, va tinh
nam thuc » nam thuoc, nam thu, nam tu
doi cua » dai cua, hoi cua
hieu le » hieu ve, hieu he, hieu ly
lai hoi » dai hoi, lai hoa, lai roi
san ky » sang ky, van ky, dan ky
ma hoi » mai hoi, xa hoi, ma hoa
te san » te ban, ke san, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky nang ((ma hoi) or (lai hoi)). hieu le ((nam thuc) OR (am thuc)) va thanh doi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang ((ma hoi) OR (lai hoi)). hieu le ((nam thuc) OR (am thuc)) va thanh doi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te san ky nang ((ma hoi) or (lai hoi)). hieu le ((nam thuc) OR (am thuc)) va thanh doi cua triet".
• Adding a wildcard symbol may retrieve word variants: te san ky nang ((ma hoi) or (lai hoi)). hieu le ((nam thuc) OR (am thuc)) va thanh doi cua triet*.