Perhaps you should try some spelling variations:
dong phuong » duong phuong, dung phuong, dong huong
hanh doanh » hang doanh, chinh doanh, doanh doanh
chieu sang » chieu sach, chieu xanh, nhieu tang
dong phong » duong phong, dong thong, hong phong
hieu lang » hieu quang, nhieu tang, hieu van
doanh cua » doanh luan
van toan » van tuan, van tan, van thanh
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu sang)) - hanh doanh cua ((dong phong) OR (dong phuong)) van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - hanh doanh cua ((dong phong) OR (dong phuong)) van toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chieu sang)) - hanh doanh cua ((dong phong) OR (dong phuong)) van toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sang)) - hanh doanh cua ((dong phong) OR (dong phuong)) van toan tap*.