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

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 ty 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 ty 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 ty hoang xa hoi. hieu ((van lam) or (van nam)) xuc ban thanh van ((cua tre) or (su triet))*.