Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
van hanh » van thanh, ban hanh, van anh
cac thoi » cac toi, cac hop, cac tro
va hanh » va thanh, va danh, ban hanh
cao xuc » cam xuc, cao duc, cao suc
hieu va » lieu va, hieu qua
cac thu » cach thuc
nang xa » nang x, lang xa, nang ma
va cao » va cac, va co, va dao
vi va » vi van, vai va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((cac thu) OR (cac thoi)) nang xa hoi. hieu va cao xuc ((va hanh) or (van hanh)) vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((cac thu) OR (cac thoi)) nang xa hoi. hieu va cao xuc ((va hanh) OR (van hanh)) vi va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((cac thu) OR (cac thoi)) nang xa hoi. hieu va cao xuc ((va hanh) or (van hanh)) vi va triet".
• Adding a wildcard symbol may retrieve word variants: su ((cac thu) OR (cac thoi)) nang xa hoi. hieu va cao xuc ((va hanh) or (van hanh)) vi va triet*.