Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
canh doanh » chinh doanh, doanh doanh, kinh doanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
luan dang » luan nang, luan danh, luan dong
dang cong » dung cong
hoc hieu » hoc thieu, hoc hien, doc hieu
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: hoc hieu manh - ((canh doanh) or (hanh doanh)) luan dang cong ((dan than) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((canh doanh) OR (hanh doanh)) luan dang cong ((dan than) OR (dan chan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((canh doanh) or (hanh doanh)) luan dang cong ((dan than) or (dan chan)) cau*.