Perhaps you should try some spelling variations:
ban thanh » ban hanh
hang doi » hang di, hang loi, huong doi
doi thoi » doi thoai, moi thoi, do thoi
hieu van » hieu va, thien van, lieu va
ban hang » ngan hang
tu sach » thu sach, su sach, te sach
cuu tre » cua tre, cau tren, cau treo
sach ty » sach y, sach tu, sach thu
cac dac » cac dan, cac dai, cac bac
van cac » van hac, van cau, van bac
ty hang » ly hang, ty xang, thi hang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty hang doi thoi. hieu van cac dac ((ban thanh) OR (ban hang)) tai ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty hang doi thoi. hieu van cac dac ((ban thanh) OR (ban hang)) tai ((cuu tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty hang doi thoi. hieu van cac dac ((ban thanh) OR (ban hang)) tai ((cuu tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty hang doi thoi. hieu van cac dac ((ban thanh) OR (ban hang)) tai ((cuu tre) or (cua te))*.