Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
thanh ve » hanh ve, thanh va, thanh vien
va trien » va truyen, va thiet, va tuyen
ve pham » vi pham, ve phan, ve phat
sach ty » sach y, sach tu, sach thu
duc ban » duc tan, duc van, dua ban
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
cuu tre » cua tre, cau tren, cau treo
v pham » vi pham, d pham

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty lang xa hoi. hieu ((ve pham) OR (v pham)) duc ban thanh ve ((cuu tre) OR (va trien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty lang xa hoi. hieu ((ve pham) OR (v pham)) duc ban thanh ve ((cuu tre) or (va trien))~".
• Adding a wildcard symbol may retrieve word variants: thu sach ty lang xa hoi. hieu ((ve pham) OR (v pham)) duc ban thanh ve ((cuu tre) or (va trien))*.