Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thuc van » thuc vat, thuc dan, thuc va
va triet » va thiet, va trien, ve triet
thanh di » thanh doi, thanh de, thanh do
so viet » hoc viet
hoc hoi » hoc khoi, hoc hoa, hoc noi
hieu ve » hieu va, hieu van
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ho hoi » hoa hoi, hoi hoi, co hoi
ve am » va am

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang ((ho hoi) OR (hoc hoi)). hieu ve am thuc van thanh di ((va triet) or (so viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang ((ho hoi) OR (hoc hoi)). hieu ve am thuc van thanh di ((va triet) OR (so viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang ((ho hoi) OR (hoc hoi)). hieu ve am thuc van thanh di ((va triet) or (so viet))*".