Perhaps you should try some spelling variations:
doanh nhanh » doanh nhan, doanh thanh, danh thanh
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
duong cong » dung cong, luong cong, duong trong
danh nhan » doanh nhan, thanh nhan, benh nhan
cong than » cong thanh, cong thang, cong tan
than phan » thanh phan, toan phan, thanh pham

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) OR (chieu xanh)) - canh ((doanh nhanh) or (danh nhan)) duong cong than phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - canh ((doanh nhanh) OR (danh nhan)) duong cong than phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - canh ((doanh nhanh) or (danh nhan)) duong cong than phan tu".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - canh ((doanh nhanh) or (danh nhan)) duong cong than phan tu*.