Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
toc sach » hoc sach, doc sach, thuoc sach
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
sach ty » sach y, sach tu, sach thu
van cau » van dau, van hau, van chat
cau tuc » cau truc, cau tu, cau luc
tuc vay » tuc va, tu vay, tuc xay
lang xa » lang ha, lang van
bat cua » ban cua, mat cua, bai cua
bao lua » bao luc, bao cua, bai luan

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: "toc sach ty ((lang xa) OR (dang xay)) hoi. hieu van cau tuc vay doanh ((bat cua) OR (bao lua)) te~".
• Adding a wildcard symbol may retrieve word variants: toc sach ty ((lang xa) OR (dang xay)) hoi. hieu van cau tuc vay doanh ((bat cua) OR (bao lua)) te*.