Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
te sach » toc sach
qua cac » cua cac
cac duc » cac du, cao duc, cac dac
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
ma hoi » mai hoi, xa hoi, me hoi
di cua » dai cua, doi cua, de cua

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

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