Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu hoang » thu hang, thu hoan, thi hoang
thanh van » thanh san, thanh toan, thanh phan
su triet » su viet, su tien, ve triet
hoang xa » hoang ha, hoang va, hoang xuan
sach thu » sach thue, sach thieu, sach tham
cua tre » cua te, cuu tre, cua triet
su sach » so sach, vu sach
xuc ban » duc ban, cuc ban, quoc ban

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

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