Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
doi chieu » doc hieu, ho chieu, mot chieu
lanh bang » anh bang, lanh sang, can bang
lanh ban » lang ban, doanh ban, tranh ban
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
doi chi » doi khi

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) OR (doi chi)) sang - ((lanh ban) or (lanh bang)) cua thuong cong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) sang - ((lanh ban) OR (lanh bang)) cua thuong cong dan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doi chi)) sang - ((lanh ban) or (lanh bang)) cua thuong cong dan phan tu".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doi chi)) sang - ((lanh ban) or (lanh bang)) cua thuong cong dan phan tu*.