Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
chieu xanh » chieu sach, chieu sang, chieu tinh
canh ban » can ban, canh dan, doanh ban
canh van » anh van, can van, cach van
cong san » cong tac
san tan » van tan, san van, san tay
tan ban » toan ban, tang ban, van ban

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 ((chinh sach) OR (chieu xanh)) - ((canh ban) OR (canh van)) cua thuong cong san tan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chinh sach) or (chieu xanh)) - ((canh ban) OR (canh van)) cua thuong cong san tan ban~".
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (chieu xanh)) - ((canh ban) OR (canh van)) cua thuong cong san tan ban*.