Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » hanh trinh, hanh trang, lanh tranh
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
cong ban » cong bang, cong san, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - ((hanh tranh) or (canh tranh)) cua nhung cong ban thanh hai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ((hanh tranh) OR (canh tranh)) cua nhung cong ban thanh hai.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((hanh tranh) or (canh tranh)) cua nhung cong ban thanh hai*.