Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh ve » hanh ve, thanh va, thanh vien
sach ty » sach tu, sach thu, xach tay
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
tuc ban » thuc ban, truc ban, tu ban
va cam » va cham, va cac, va cao
ve cua » le cua, de cua, te cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach y)) lang xa hoi. hieu va cam tuc ban thanh ve cua vat~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach y)) lang xa hoi. hieu va cam tuc ban thanh ve cua vat*.