Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
cong doanh » cong danh, cong doan, dong doanh
doanh phan » doanh nhan, doan phan, doanh thanh
hanh dong » anh dong, ha dong
dong quan » duong quan, dong quang, dung quan
quan hanh » quan thanh, quang thanh, quang khanh
hanh cong » thanh cong, hang cong, nhanh chong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (chieu sang)) - hanh dong quan hanh cong doanh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - hanh dong quan hanh cong doanh phan tu*.