Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
hieu van » hieu va, thien van, lieu va
ta doanh » va doanh, te doanh, ty doanh
lang xa » dang xay, lang van
lang ha » long ha
van cac » van hac, van cau, van bac
cac toc » cac toi, cac nuoc, cac thoi
dan cua » dan ca, ban cua, dai cua
te cac » tu cac, ve cac, te cao
toc ta » toc tay, toc thai
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) OR (lang ha)) hoi. hieu van cac toc ta doanh dan cua te~.
• Adding a wildcard symbol may retrieve word variants: te cac ky ((lang xa) or (lang ha)) hoi. hieu van cac toc ta doanh dan cua te*.