Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
cua dang » cua ban
cong ban » cong bang, cong san, cong tan
ban khan » ban than, ban nhan, ban chan
khan cap » khan ap, than cap, khoan cam

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 xanh - thanh trung ((cua cong) or (cua dang)) cong ban khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh trung ((cua cong) OR (cua dang)) cong ban khan cap.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh trung ((cua cong) or (cua dang)) cong ban khan cap*.