Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
sach tay » xach tay, sach hay, sach nay
thanh ve » hanh ve, thanh va, thanh vien
lang van » dang van, tang van, hoang van
tu sach » thu sach, su sach, te sach
tuc ban » thuc ban, truc ban, tu ban
lang xa » lang ha, dang xay
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
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: tu sach tay ((lang xa) OR (lang van)) hoi. hieu ((ve cam) OR (ve cac)) tuc ban thanh ve cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tay ((lang xa) or (lang van)) hoi. hieu ((ve cam) OR (ve cac)) tuc ban thanh ve cua vat~".
• Adding a wildcard symbol may retrieve word variants: tu sach tay ((lang xa) or (lang van)) hoi. hieu ((ve cam) OR (ve cac)) tuc ban thanh ve cua vat*.