Perhaps you should try some spelling variations:
luan thuong » luat thuong, lan thuong, luan phuong
thuong cong » thong cong, thuong con, thuong dong
thanh dung » thanh duong, thanh tung, thanh hung
cong dan » cong san, cong tan, huong dan
chu van » cuu van
dan can » dan chan, dan canh, dan ca
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chu van) OR (chu han)) - thanh dung luan thuong cong dan can cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu van) OR (chu han)) - thanh dung luan thuong cong dan can cau*".