Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
doanh luan » doanh nhan
anh doanh » hanh doanh, anh danh, doanh doanh
cong sang » cong san, cong lang, cong vang
luan han » luan hoan, luan phan, luan van
han cong » phan cong, hang cong, hanh cong
sang ban » hang ban, nang ban, sang bae
ban cau » bang cau, ban can, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu sach)) - anh doanh luan han cong sang ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - anh doanh luan han cong sang ban cau*.