Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
thien van » thi van
va doanh » van doanh, va danh, hoa doanh
cac toc » cac toi, cac nuoc, cac thoi
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
dao cua » dai cua, day cua, dan cua
ky lang » ky nang, ky dang, ky tang
te cac » tu cac, ve cac, te cao
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 cac ky lang xa hoi. ((hieu va) OR (thien van)) cac toc ((va doanh) OR (vay doanh)) dao cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac ky lang xa hoi. ((hieu va) or (thien van)) cac toc ((va doanh) OR (vay doanh)) dao cua te~".
• Adding a wildcard symbol may retrieve word variants: te cac ky lang xa hoi. ((hieu va) or (thien van)) cac toc ((va doanh) OR (vay doanh)) dao cua te*.