Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
canh doanh » hanh doanh, chinh doanh, doanh doanh
thong cong » trong cong, tong cong, thong thong
cong thanh » dong thanh, cong trinh, cong tan
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
chan dau » phan dau, chan doan, chuan dao
han dau » hang dau, phan dau, van dau

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 cua thong cong thanh ((chan dau) OR (han dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - canh doanh cua thong cong thanh ((chan dau) OR (han dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (chieu xanh)) - canh doanh cua thong cong thanh ((chan dau) OR (han dau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu xanh)) - canh doanh cua thong cong thanh ((chan dau) OR (han dau))*.