Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh di » thanh doi, thanh de, thanh do
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
tang ma » tang van
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
ve cam » ve cham, ve cac, va cam
di cua » dai cua, doi cua, de cua

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: tu sach ky ((mang may) OR (tang ma)) hoi. hieu ve cam xuc ban thanh di cua vat~.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((mang may) or (tang ma)) hoi. hieu ve cam xuc ban thanh di cua vat*.