Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh vai » hanh vi, hanh va, hanh tai
sach ty » sach y, sach tu, sach thu
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
co sach » bo sach, cuon sach, hoc sach
mai hoi » mai khoi, dai hoi, lai hoi
ty sang » ty xang, ty hang, duy sang
ve cham » va cham, ve chat, vu cham
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ty sang ((mai hoi) or (xa hoi)). hieu ((ve cham) or (ve cac)) xuc va hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ty sang ((mai hoi) OR (xa hoi)). hieu ((ve cham) OR (ve cac)) xuc va hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: co sach ty sang ((mai hoi) or (xa hoi)). hieu ((ve cham) or (ve cac)) xuc va hanh vai cua triet*.