Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
ve triet » su triet
va hanh » van hanh, va thanh, va danh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu van
hieu va » lieu va, hieu qua
hanh ve » hanh vi, hanh va, hanh kem
te sac » te sach, te cac, te san
xuc va » duc va, tuc va, luc va
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky lang xa hoi. ((hieu ve) or (hieu va)) cam xuc va hanh ve ((ve triet) OR (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. ((hieu ve) OR (hieu va)) cam xuc va hanh ve ((ve triet) OR (va trien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. ((hieu ve) or (hieu va)) cam xuc va hanh ve ((ve triet) OR (va trien))".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. ((hieu ve) or (hieu va)) cam xuc va hanh ve ((ve triet) OR (va trien))*.