Perhaps you should try some spelling variations:
doanh thanh » danh thanh, doanh nhan, dinh thanh
tieng manh » tieng anh, tien manh, tieng han
thanh luan » tranh luan, thanh xuan, thanh tuan
nhung cong » thong cong, hang cong, nhung don
hoc tieng » hoc hien
dung cong » dung trong
dan toan » van toan, dan than, manh 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 tieng manh - doanh thanh luan ((nhung cong) OR (dung cong)) ((dan toan) or (ban than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tieng manh - doanh thanh luan ((nhung cong) OR (dung cong)) ((dan toan) OR (ban than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc tieng manh - doanh thanh luan ((nhung cong) OR (dung cong)) ((dan toan) or (ban than)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc tieng manh - doanh thanh luan ((nhung cong) OR (dung cong)) ((dan toan) or (ban than)) cau*.