Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
hoc thieu » toc thieu, hoc hien
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
doc hieu » toc thieu, hoc hien
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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 thieu)) manh - hanh doanh luan dong cong ((dan than) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) manh - hanh doanh luan dong cong ((dan than) OR (dan chan)) cau.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) manh - hanh doanh luan dong cong ((dan than) or (dan chan)) cau*.