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