Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
su sach » so sach, vu sach
dua ban » dia ban, cua ban, qua ban
cua tre » cua te, cua triet, dua tren
sach ky » sac ky, sach y, sach ty
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang
cuu tre » cau tren, cau treo
va cam » va cham, va cao, va cai

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 sang ma hoa. lieu ((va cam) OR (va cac)) dua ban thanh vai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky sang ma hoa. lieu ((va cam) OR (va cac)) dua ban thanh vai ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky sang ma hoa. lieu ((va cam) OR (va cac)) dua ban thanh vai ((cua tre) or (cuu tre))*".