Perhaps you should try some spelling variations:
thanh tranh » thanh tran, thanh trang, thanh trinh
chinh doanh » kinh doanh
thanh thanh » nhanh thanh, thanh toan, thanh phan
doanh cua » doanh luan
tu chinh » te chinh, su chinh, tu chanh
ham khai » tham khao, pham khac, than khai
cua khi » cua khoi, cu khi, cua chi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu chinh doanh cua khi đong luc ) or ( thi ((thanh tranh) OR (thanh thanh)) ham khai đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu chinh doanh cua khi đong luc ) OR ( thi ((thanh tranh) OR (thanh thanh)) ham khai đong luc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu chinh doanh cua khi đong luc ) or ( thi ((thanh tranh) OR (thanh thanh)) ham khai đong luc ))".
• Adding a wildcard symbol may retrieve word variants: (( tu chinh doanh cua khi đong luc ) or ( thi ((thanh tranh) OR (thanh thanh)) ham khai đong luc ))*.