Perhaps you should try some spelling variations:
chan thuong » phan thuong, hang thuong, pham thuong
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
han thuong » hang thuong, phan thuong, lan thuong
doi chieu » doc hieu, doi chi, ho chieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac

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 - thanh trung ((han thuong) or (chan thuong)) ((cong dan) or (cong san)) thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh trung ((han thuong) OR (chan thuong)) ((cong dan) OR (cong san)) thanh san.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trung ((han thuong) or (chan thuong)) ((cong dan) or (cong san)) thanh san*.