Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, 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
sach ty » sach y, sach tu, sach thu
va hanh » van hanh, va thanh, va danh
ma hoi » mai hoi, ma hoa, me hoi

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: thu sach ty xang ((ma hoi) OR (xa hoi)). hieu qua cham duc va hanh lai ((cua triet) OR (hoa viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty xang ((ma hoi) OR (xa hoi)). hieu qua cham duc va hanh lai ((cua triet) or (hoa viet))~".
• Adding a wildcard symbol may retrieve word variants: thu sach ty xang ((ma hoi) OR (xa hoi)). hieu qua cham duc va hanh lai ((cua triet) or (hoa viet))*.