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

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 (dam thuc))) or (nam thuc)) ban thanh va ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky nang xa hoi. hieu ve ((((cam tuc) OR (dam thuc))) OR (nam thuc)) ban thanh va ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ky nang xa hoi. hieu ve ((((cam tuc) OR (dam thuc))) or (nam thuc)) ban thanh va ve triet".
• Adding a wildcard symbol may retrieve word variants: su xac ky nang xa hoi. hieu ve ((((cam tuc) OR (dam thuc))) or (nam thuc)) ban thanh va ve triet*.