Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhan trung » nhan trong, than trung, thanh trung
cong cong » cong dong, trong cong, dung cong
cong lang » cong vang, cong luong, cong quang
thang cha » thanh cha, thang cua, khang chan

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot chieu sach - hanh doanh nhan trung ((cong cong) or (cong lang)) thang cha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot chieu sach - hanh doanh nhan trung ((cong cong) OR (cong lang)) thang cha.
• Adding a wildcard symbol may retrieve word variants: mot chieu sach - hanh doanh nhan trung ((cong cong) or (cong lang)) thang cha*.