Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
dua tren » dung tren
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
anh xay » manh xay, anh hay, nganh xay
xay hoi » xa hoi, tay hoi, cay phoi
van cam » van nam, van lam, van cau
xuc ban » duc ban, cuc ban, quoc ban
cuu tre » cua tre, cau tren, cau treo
ky anh » ky danh, ly anh, ty anh

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 ky anh xay hoi. hieu van cam xuc ban thanh hai ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky anh xay hoi. hieu van cam xuc ban thanh hai ((dua tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: su sach ky anh xay hoi. hieu van cam xuc ban thanh hai ((dua tren) or (cuu tre))*.