Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
duong phong » duong hong, duong trong, duong cong
hang doanh » hanh doanh, nhung doanh, van doanh
hieu lang » chieu sang, hieu quang, nhieu tang
cua duong » cua dong, cua huong, qua duong
doi hieu » doi chieu, doc hieu, doi hien
phong va » thong va, phung van, thong van
toan tap » toan ban
va toan » van toan, bai toan, tap toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - ((hang doanh) or (doanh doanh)) cua duong phong va toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - ((hang doanh) OR (doanh doanh)) cua duong phong va toan tap.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - ((hang doanh) or (doanh doanh)) cua duong phong va toan tap*.