Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
cua nhung » va nhung
chuan dao » chuan doan, chuan ha, chuan san
cong dan » cong san, cong tan, huong dan
doanh » toanh, soanh, hoanh
doan » toan, soan, hoan

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 - doanh doanh cua nhung cong dan ((((chuan dao) OR (chuan iso))) or (chan doan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - doanh doanh cua nhung cong dan ((((chuan dao) OR (chuan iso))) OR (chan doan))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - doanh doanh cua nhung cong dan ((((chuan dao) OR (chuan iso))) or (chan doan))*".