Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
van doanh » toan doanh, van dong, van thanh
hieu van » hieu va, thien van, lieu va
van cac » van hac, van cau, van bac
toc van » hoc van, toc san, tac van
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
cac toc » cac toi, cac nuoc, cac thoi
te sai » te tai, te lai, te hai
te bai » te bao, te tai, te ban
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 sai) OR (te bai)) ky lang xa hoi. hieu van cac toc van doanh dan ((cua te) OR (cua tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sai) OR (te bai)) ky lang xa hoi. hieu van cac toc van doanh dan ((cua te) or (cua tu))~".
• Adding a wildcard symbol may retrieve word variants: ((te sai) OR (te bai)) ky lang xa hoi. hieu van cac toc van doanh dan ((cua te) or (cua tu))*.