Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
dong phong » duong phong, dong phuong, dong thong
hieu lang » chieu sang, nhieu tang, hieu van
luan dong » luan cong, quan dong, luan nong
phong va » thong va, phung van, thong van
toan ban » van ban

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 luan dong phong va ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((hieu lang) OR (hieu quang)) - hanh doanh luan dong phong va ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoi ((hieu lang) or (hieu quang)) - hanh doanh luan dong phong va ((toan tap) or (toan ban))*.