Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
loc van » luoc van, hoc van, lo van
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
ma hoi » mai hoi, xa hoi, ma hoa
sac ky » cac ky, sai ky
loc va » hoc va, luc va
anh vi » hanh vi, anh va, anh ve
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky sang ma hoi. hieu va tham ((loc van) or (loc va)) anh vi ((va triet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang ma hoi. hieu va tham ((loc van) OR (loc va)) anh vi ((va triet) OR (cua vat)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ma hoi. hieu va tham ((loc van) or (loc va)) anh vi ((va triet) or (cua vat))*.