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 tai, thanh lap, thanh loi
hanh lam » thanh lap, hanh kem, hanh va
sach ty » sach y, sach tu, sach thu

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 ty xang ((xa hoi) or (ma hoa)). hieu qua cham duc va ((hanh lai) OR (hanh lam)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty xang ((xa hoi) OR (ma hoa)). hieu qua cham duc va ((hanh lai) OR (hanh lam)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty xang ((xa hoi) or (ma hoa)). hieu qua cham duc va ((hanh lai) OR (hanh lam)) cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sach ty xang ((xa hoi) or (ma hoa)). hieu qua cham duc va ((hanh lai) OR (hanh lam)) cua triet*.