Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
doi chieu » doc hieu, doi chi, ho chieu
cua thong » cua thuong, cua khong, cua tong
thanh tra » thanh toan, thanh hoa
anh dang » anh dung, anh bang, anh danh
anh dong » anh huong, anh son
tra van » tran van, ta van, trang van

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 - ((anh dang) or (anh dong)) cua thong cong thanh tra van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((anh dang) OR (anh dong)) cua thong cong thanh tra van*.