Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
sach thi » sach thu, sach tai, sach thieu
thi hang » thi hanh, thi nang, thi hong
hieu van » hieu va, thien van, lieu va
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
hang xa » hoang xa, hang va, hang ca
van cau » van dau, van hau, van chat
cau xuc » cam xuc, cau luc, cau truc
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet

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 thi hang xa hoi. hieu van cau xuc ban thanh van ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thi hang xa hoi. hieu van cau xuc ban thanh van ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sach thi hang xa hoi. hieu van cau xuc ban thanh van ((cua tre) or (su triet))*.