Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
thu sach » tu sach, thuat sach, thuoc sach
qua cham » qua hai, qua cac, va cham
cham duc » pham duc, cham soc, pham duy
hanh lai » hanh lam, hanh tai, thanh lap
su triet » su viet, su tien, ve triet
va hanh » van hanh, va thanh, va danh
y sang » _ sang, duy sang
ma hoi » mai hoi, xa hoi, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y sang ((ma hoi) or (ma hoa)). hieu qua cham duc va hanh lai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y sang ((ma hoi) OR (ma hoa)). hieu qua cham duc va hanh lai ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: thu sach y sang ((ma hoi) or (ma hoa)). hieu qua cham duc va hanh lai ((cua triet) or (su triet))*.