Perhaps you should try some spelling variations:
dong doanh » dung doanh, trong doanh, doanh doanh
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
cach ban » cac ban, cach bao, cach ben
cua dang » cua ban
cong san » cong tac
phan dau » phan tu, hang 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 - cach ban ((cua dang) OR (cua cong)) ((cong san) or (dong doanh)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - cach ban ((cua dang) OR (cua cong)) ((cong san) OR (dong doanh)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - cach ban ((cua dang) OR (cua cong)) ((cong san) or (dong doanh)) phan dau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - cach ban ((cua dang) OR (cua cong)) ((cong san) or (dong doanh)) phan dau*.