Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh le » thinh le, thanh ve, thanh de
tu sach » thu sach, su sach, te sach
hoa hoi » khoa hoi, hoa hoc, hoa doi
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
ty lang » tay lang, ty xang, ty hang
ha hoi » ha noi, xa hoi, va hoi
cam tu » cam thu, dam tu, tam tu
nam tu » nam thu, nam thuc
le cua » ly cua

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 lang ((ha hoi) OR (hoa hoi)). hieu ve ((cam tu) or (nam tu)) ban thanh le cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty lang ((ha hoi) OR (hoa hoi)). hieu ve ((cam tu) OR (nam tu)) ban thanh le cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty lang ((ha hoi) OR (hoa hoi)). hieu ve ((cam tu) or (nam tu)) ban thanh le cua vat".
• Adding a wildcard symbol may retrieve word variants: tu sach ty lang ((ha hoi) OR (hoa hoi)). hieu ve ((cam tu) or (nam tu)) ban thanh le cua vat*.