Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
thu hang » thi hang, thuc hanh, thu huong
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
so sach » so sanh, bo sach, co sach
hang xa » hoang xa, hang va, hang ca
nam duc » nam duoc, pham duc, nam thuc
duc ban » duc tan, duc van, dua ban
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach thu hang xa hoi. hieu van nam duc ban hanh va ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu hang xa hoi. hieu van nam duc ban hanh va ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: so sach thu hang xa hoi. hieu van nam duc ban hanh va ((cua tre) or (cua triet))*.