Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
thu nang » thu hang, thu bang, tho nang
thi nang » thi cong, ki nang, thi hanh
van hanh » van thanh, ban hanh, van anh
va hanh » va thanh, va danh, ban hanh
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
vai va » mai va, dai va, hai va
su cac » tu cac, su cao, su can
va cao » va cac, va co, va dao

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