Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nay tang » nam tang, tay tang, anai tang
bo sach » hoc sach
co sach » cuon sach, hoc sach
tang ma » mang may, tang van
qua cam » qua cham, qua cac, qua ca
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa

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: ((bo sach) OR (co sach)) nay tang ma hoi. hieu qua cam tuc va hanh vi ((cua triet) OR (cua vat))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bo sach) OR (co sach)) nay tang ma hoi. hieu qua cam tuc va hanh vi ((cua triet) or (cua vat))~".
• Adding a wildcard symbol may retrieve word variants: ((bo sach) OR (co sach)) nay tang ma hoi. hieu qua cam tuc va hanh vi ((cua triet) or (cua vat))*.