Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
trang xa » trang va, trang ha, trong xa
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
san cua » sang cua, ban cua, dan cua
duc ban » duc tan, duc van, dua ban
tang xa » lang xa, tang ha, mang xa
tang ma » mang may, tang van
cua tre » cua te, cuu tre, cua triet
hieu d » dieu d, hieu 2, hieu _
d pham » d phan

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 ((((tang xa) OR (tang ma))) or (trang xa)) hoi. hieu d pham duc ban thanh san cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((((tang xa) OR (tang ma))) OR (trang xa)) hoi. hieu d pham duc ban thanh san cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((((tang xa) OR (tang ma))) or (trang xa)) hoi. hieu d pham duc ban thanh san cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((((tang xa) OR (tang ma))) or (trang xa)) hoi. hieu d pham duc ban thanh san cua tre*.