Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
va trien » va truyen, va thiet, va tuyen
ve triet » su triet
thanh va » thanh van, hanh va, thanh ha
nam thuc » nam thuoc, am thuc, nam thu
cam tuc » cam xuc, cam tu, dam thuc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
xac ky » cac ky, sac ky, bac ky
su xac » pu xac, su cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky nang xa hoi. hieu ve ((cam tuc) or (nam thuc)) ban thanh va ((ve triet) or (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky nang xa hoi. hieu ve ((cam tuc) OR (nam thuc)) ban thanh va ((ve triet) OR (va trien)).
• Adding a wildcard symbol may retrieve word variants: su xac ky nang xa hoi. hieu ve ((cam tuc) or (nam thuc)) ban thanh va ((ve triet) or (va trien))*.