Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu xanh » chieu xanh, hieu manh, hieu nganh
doanh cua » doanh luan
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - hanh doanh cua ((dung cong) or (thong thong)) tan ((phan cau) OR (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh doanh cua ((dung cong) OR (thong thong)) tan ((phan cau) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh doanh cua ((dung cong) or (thong thong)) tan ((phan cau) OR (phan cac))".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh doanh cua ((dung cong) or (thong thong)) tan ((phan cau) OR (phan cac))*.