Perhaps you should try some spelling variations:
doanh nhanh » doanh nhan, doanh thanh, danh thanh
thang cong » thanh cong, thang long, thong cong
hoc chieu » hoc thieu, ho chieu, hoc dieu
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 chieu) OR (hoc hien)) xanh - canh ((doanh nhanh) or (danh nhan)) thang cong than phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) xanh - canh ((doanh nhanh) OR (danh nhan)) thang cong than phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc hien)) xanh - canh ((doanh nhanh) or (danh nhan)) thang cong than phan tu".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc hien)) xanh - canh ((doanh nhanh) or (danh nhan)) thang cong than phan tu*.