Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh vai » hanh va, hanh tai, hanh van
thi hanh » thi thanh
nam thuc » nam thuoc, am thuc, nam thu
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, te sach, tu cach
hanh xu » hanh tu, hanh sua, hanh cua
su sach » so sach, vu sach
hieu le » hieu ve, hieu he, hieu ly
le nam » ly nam, he nam, le na
xu hoi » xa hoi, lu hoi, vu hoi

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 (su sach)) thi hanh xu hoi. hieu le nam thuc va ((hanh vai) or (hanh vi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) thi hanh xu hoi. hieu le nam thuc va ((hanh vai) OR (hanh vi)) cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) thi hanh xu hoi. hieu le nam thuc va ((hanh vai) or (hanh vi)) cua triet*.