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
lang van » dang van, tang van, hoang van
sach tay » xach tay, sach hay, sach nay
tuc ban » thuc ban, truc ban, tu ban
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
lang ha » long ha
lang xa » dang xay
ve cam » ve cham, ve cac, va cam
ve cua » le cua, de cua, te 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: thu sach tay ((((lang xa) OR (lang ha))) OR (lang van)) hoi. hieu ve cam tuc ban thanh ve cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach tay ((((lang xa) OR (lang ha))) or (lang van)) hoi. hieu ve cam tuc ban thanh ve cua vat~".
• Adding a wildcard symbol may retrieve word variants: thu sach tay ((((lang xa) OR (lang ha))) or (lang van)) hoi. hieu ve cam tuc ban thanh ve cua vat*.