Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
hieu van » hieu va, thien van, lieu va
va doanh » vay doanh, va danh, hoa doanh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van cac » van hac, van cau, van bac
cac toc » cac toi, cac nuoc, cac thoi
dan cua » ban cua, dai cua, day cua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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