Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thi hang » thi hanh, thi nang, thi hong
nam thuc » nam thuoc, am thuc, nam thu
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
hang xa » hoang xa, hang va, hang ca
hieu he » hieu ve, hiem he, hieu le
he nam » ha nam, nghe nam
vi cua » vai cua, di cua

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