Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh doanh » hanh doanh, chinh doanh, doanh doanh
cong thanh » dong thanh, cong trinh, truong thanh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
cong tan » cong tac, cong san, cong ty
chan dau » phan dau, han dau, chuan dao
doanh » danh, toanh, soanh
doan » dan, toan, soan

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