Perhaps you should try some spelling variations:
doanh dai » doanh tai, doanh dao, doanh giai
va doanh » van doanh, vay doanh, va danh
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
cac toc » cac nuoc, cac thoi
cac toi » cac thoi
te sac » te sach, te cac
te san » te ban, ke san, tu san
cua te » cua tu

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