Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chiet tach » chieu sach
thien hach » thien thanh, hien hanh
hanh trinh » canh tranh, hanh chinh
cua thuong » cua truong, cua phuong, ca thuong
trinh cua » tinh cua, trinh luat, trinh quan
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chiet tach) or (thien hach)) - hanh trinh cua thuong cong ((dan than) OR (ban than)) man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chiet tach) OR (thien hach)) - hanh trinh cua thuong cong ((dan than) OR (ban than)) man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chiet tach) or (thien hach)) - hanh trinh cua thuong cong ((dan than) OR (ban than)) man".
• Adding a wildcard symbol may retrieve word variants: hoc ((chiet tach) or (thien hach)) - hanh trinh cua thuong cong ((dan than) OR (ban than)) man*.