Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
dan cua » dan ca, ban cua, dai cua
te sai » te tai, te bai, te lai
sai ky » sac ky
toc va » hoc va, tuc va, loc va
toc ta » toc tay, toc thai
cua te » cua tu

You may be able to get more results by adjusting your search query.

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