Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thiet tach » chiet tach, thien hach, thuat tach
cua thuong » cua truong, cua phuong, ca thuong
canh manh » lanh manh, canh tranh, van manh
ho thiet » hoc thiet, hoa thiet, so thiet
cong dan » cong san, cong tan, huong dan
gian dau » gian dan, gian dac, gia dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho thiet tach - ((canh manh) or (cach mang)) cua thuong cong dan gian dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thiet tach - ((canh manh) OR (cach mang)) cua thuong cong dan gian dau*.