Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
qua cham » qua hai, qua cac, va cham
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
truc va » thuc va, thuc vat, trung va
tu can » tu ban, tu cac, thu canh
can ky » van ky, dan ky, ban ky
luc va » duc va, tuc va, loc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ky lang xa hoi. hieu qua cham ((luc va) OR (truc va)) hanh vi ((cua triet) OR (su triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ky lang xa hoi. hieu qua cham ((luc va) or (truc va)) hanh vi ((cua triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: tu can ky lang xa hoi. hieu qua cham ((luc va) or (truc va)) hanh vi ((cua triet) OR (su triet))*.