Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
doanh dao » doanh bao, doanh cao, doanh giao
lang van » dang van, tang van, hoang van
te sach » toc sach
tac vay » tac va, tac van, tac cay
cua tuc » cua duc, cua tu, cua thuoc
van cau » van dau, van hau, van chat
sach ky » sac ky, sach y, sach ty
van cac » van hac, van bac, dan cac
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
cua cau » cua cac, cua chu, cua cay

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: te sach ky lang van hoi. hieu ((van cac) OR (van cau)) tac vay doanh dao ((cua tuc) OR (cua cau))~.
• Adding a wildcard symbol may retrieve word variants: te sach ky lang van hoi. hieu ((van cac) or (van cau)) tac vay doanh dao ((cua tuc) or (cua cau))*.