Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh cua » doanh luan
cua nhung » va nhung
cong tang » cong thang, cong tan, cong lang
doc hieu » toc thieu, hoc thieu
tang van » dang van, hoang van, trong van

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) OR (hoc hien)) xanh - hanh doanh cua nhung cong tang van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc hien)) xanh - hanh doanh cua nhung cong tang van ban".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (hoc hien)) xanh - hanh doanh cua nhung cong tang van ban*.