Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
nam thuc » nam thuoc, am thuc, nam thu
hieu ve » hieu va, hieu van
te sach » toc sach
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
tu sach » thu sach, su sach, tu cach
ve nam » he nam, va nam, le nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) ((thi hanh) or (thi thanh)) xa hoi. hieu ve nam thuc va hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ((thi hanh) OR (thi thanh)) xa hoi. hieu ve nam thuc va hanh lai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ((thi hanh) or (thi thanh)) xa hoi. hieu ve nam thuc va hanh lai cua triet*.