Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
lang van » dang van, tang van, hoang van
va doanh » van doanh, vay doanh, va danh
te sach » toc sach
van bac » van ban, van bao, van hac
sach ky » sac ky, sach y, sach ty
van cac » van hac, van cau, dan cac
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
toc va » hoc va, toc ta, tuc va
cua tu » cua tuc, cua su, cua cu

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 bac)) toc va doanh dan ((cua te) OR (cua tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang van hoi. hieu ((van cac) OR (van bac)) toc va doanh dan ((cua te) or (cua tu))~".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang van hoi. hieu ((van cac) OR (van bac)) toc va doanh dan ((cua te) or (cua tu))*.