Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty hang » ly hang, ty xang, thi hang
van lam » van nam
lam xuc » cam xuc, lam duoc
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, cua triet
va hoi » xa hoi, va hoc, va hoa

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 hang va hoi. hieu van lam 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 hang va hoi. hieu van lam xuc ban thanh van ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sach ty hang va hoi. hieu van lam xuc ban thanh van ((cua tre) or (su triet))*.