Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
cua thuong » cua truong, cua phuong, ca thuong
canh dan » canh van, sanh dan, thanh dan
cong dan » cong san, cong tan, huong dan
dan cua » dan ca, ban cua, dai cua
dan van » dang van, doan van, dao van

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - canh dan cua thuong cong dan van ban~.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu xanh)) - canh dan cua thuong cong dan van ban*.