Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
ho chieu » theo chieu, hoc thieu, doi chieu
ban cong » bang cong, van cong, phan cong
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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: ho chieu sang - hanh tranh cua ban cong tan ((toan cau) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh tranh cua ban cong tan ((toan cau) or (toan ban))*.