Perhaps you should try some spelling variations:
cong thuong » hang thuong
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
hanh dung » thanh dung, anh dung, hanh dong
thuong va » truong va, thong va, thuong mai
toan cau » toan cao, toan ban, toan tap

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 sach)) - hanh dung trong cong thuong va ((toan cau) OR (van ban))~.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu sach)) - hanh dung trong cong thuong va ((toan cau) or (van ban))*.