Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
tieu danh » dieu danh, tiep danh, thien danh
doanh cua » doanh luan
cong song » cong dong, cong cong, song song
song van » hoang van, trong van, duong van
tuan cao » toan cao, juan cao, quang cao
quan cau » quang cao, toan cau, quan ha

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (tieu danh)) - hanh doanh cua cong song van ((tuan cao) OR (quan cau))~.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (tieu danh)) - hanh doanh cua cong song van ((tuan cao) or (quan cau))*.