Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thanh thong » thanh thuong, thanh hong, thanh thang
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
ke thuong » te thuong, ky thuong, le thuong
van quang » van quan, tran quang, van tuan
quang cao » nang cao, quang nam
cong van » cong vang, cong san, song van

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 xanh) or (chieu sach)) - thanh thong ke thuong cong van quang cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - thanh thong ke thuong cong van quang cao*.