Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh doanh » hanh doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
cong van » cong vang, song van, cong tan
cong san » cong tac
phan dau » phan tu
hang dau » hang va, hang tai

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 cong ((cong van) OR (cong san)) ((phan dau) or (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh doanh cua cong ((cong van) OR (cong san)) ((phan dau) OR (hang dau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - canh doanh cua cong ((cong van) OR (cong san)) ((phan dau) or (hang dau))*".