Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
khoan cam » khoa cam, khoan va, phan cam
cua dang » cua ban
cong ban » cong bang, cong san, cong tan
khan ap » khan cap, han ap, khan dam

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