Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tuan cau » toan cau, quan cau, tuan cu

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 sang - ((hanh tranh) or (hanh trang)) cua thong ((cong tac) or (cong san)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((hanh tranh) OR (hanh trang)) cua thong ((cong tac) OR (cong san)) tuan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((hanh tranh) or (hanh trang)) cua thong ((cong tac) or (cong san)) tuan cau*.