Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
so nganh » so ngan, hoc nganh, moi nganh
nganh ly » nganh y, nganh ky, nganh xay
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
va hanh » va thanh, va danh, ban hanh
cau du » cau do, cac du, cau tu
ve cau » ke cau, va cau, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: so nganh ly nang xa hoi. hieu van cau du ((van hanh) or (va hanh)) ve cau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so nganh ly nang xa hoi. hieu van cau du ((van hanh) OR (va hanh)) ve cau triet.
• Adding a wildcard symbol may retrieve word variants: so nganh ly nang xa hoi. hieu van cau du ((van hanh) or (va hanh)) ve cau triet*.