Perhaps you should try some spelling variations:
ban thanh » ban hang
ban hanh » ban hang
va triet » va thiet, va trien, ve triet
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
dao luc » dao duc, dao tuc, bao luc
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
va dao » ca dao
moi va » hoi va, mai va, moi ve

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 xa hoi. hieu va dao luc ((ban thanh) or (ban hanh)) moi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu va dao luc ((ban thanh) OR (ban hanh)) moi va triet.
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu va dao luc ((ban thanh) or (ban hanh)) moi va triet*.