Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
hanh doanh » hang doanh, chinh doanh, doanh doanh
dong phong » duong phong, dong phuong, dong thong
hieu lang » chieu sang, nhieu tang, hieu van
doanh cua » doanh luan
cua dong » chua dong, cua cong, cua dang
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: hoi ((hieu lang) or (hieu quang)) - hanh doanh cua dong phong va toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((hieu lang) OR (hieu quang)) - hanh doanh cua dong phong va toan tap.
• Adding a wildcard symbol may retrieve word variants: hoi ((hieu lang) or (hieu quang)) - hanh doanh cua dong phong va toan tap*.