Perhaps you should try some spelling variations:
doanh nhanh » doanh nhan, doanh thanh, danh thanh
thieu xanh » chieu xanh, hieu manh, thien danh
dong thanh » truong thanh
thanh phan » thanh pho, thanh san, thanh toan
thien anh » thien danh, tien anh, thien thanh
danh nhan » doanh nhan, thanh nhan, benh nhan

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 (thien anh)) - hanh ((doanh nhanh) OR (danh nhan)) cong dong thanh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - hanh ((doanh nhanh) OR (danh nhan)) cong dong thanh phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien anh)) - hanh ((doanh nhanh) OR (danh nhan)) cong dong thanh phan tu".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - hanh ((doanh nhanh) OR (danh nhan)) cong dong thanh phan tu*.