Perhaps you should try some spelling variations:
cach doanh » cac doanh, sach danh, cach nhanh
doanh luan » doanh nhan
luan nhung » luan chung, luan hung, quan nhung
ho trieu » mot trieu, 25 trieu, ho chieu
30 trieu » 25 trieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho trieu) OR (30 trieu)) dinh - cach doanh luan nhung ((cong dan) or (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho trieu) OR (30 trieu)) dinh - cach doanh luan nhung ((cong dan) OR (cong san)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) OR (30 trieu)) dinh - cach doanh luan nhung ((cong dan) or (cong san)) phan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) OR (30 trieu)) dinh - cach doanh luan nhung ((cong dan) or (cong san)) phan cau*.