Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh ba » thanh bac, thanh bai, thanh ban
nam thuc » nam thuoc, am thuc, nam thu
thuc day » thuc dan, thuc vat
day hanh » day nhanh, day thanh, dao hanh
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
hieu he » hieu ve, hiem he, hieu le
tai cua » thai cua, tai cuc, tri cua
ba hoi » bia hoi, xa hoi, ba hoa
he nam » ha nam, nghe 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 (su sach)) thi thanh ba hoi. hieu he nam thuc day hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) thi thanh ba hoi. hieu he nam thuc day hanh tai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) thi thanh ba hoi. hieu he nam thuc day hanh tai cua triet*.