Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
va thanh » gia thanh, ban thanh, le thanh
cach tu » cach thuc
va tinh » may tinh
su cach » su sach, tu cach, su cac
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
cam luc » cam xuc, cau luc
lai va » loai va, mai va, dai 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 cach tu nang xa hoi. ((hieu ve) or (hieu qua)) cam luc ((va thanh) OR (va tinh)) lai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cach tu nang xa hoi. ((hieu ve) OR (hieu qua)) cam luc ((va thanh) OR (va tinh)) lai va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cach tu nang xa hoi. ((hieu ve) or (hieu qua)) cam luc ((va thanh) OR (va tinh)) lai va triet".
• Adding a wildcard symbol may retrieve word variants: su cach tu nang xa hoi. ((hieu ve) or (hieu qua)) cam luc ((va thanh) OR (va tinh)) lai va triet*.