Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
voi doanh » von doanh, tri doanh, hoa doanh
hieu van » hieu va, thien van, lieu va
sach tu » sach thu, cach tu, sach ty
lang xa » lang ha, dang xay, lang van
van cau » van dau, van hau, van chat
dan cua » dan ca, ban cua, dai cua
cau tu » dau tu, cau truc
tu voi » tu doi, su voi, tu vi
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 ((sach tu) OR (sach y)) lang xa hoi. hieu van cau tu voi doanh dan cua te~.
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) or (sach y)) lang xa hoi. hieu van cau tu voi doanh dan cua te*.