Perhaps you should try some spelling variations:
nhung doanh » dung doanh, nhung don, nhuan doanh
nhung danh » nhung manh, nhung hanh, nhung thanh
hien xanh » hien hanh, hien nhanh, chieu xanh
bang cong » dang cong, bang song, hang cong
chu bang » thu bang, chuc nang, chu quang
tan van » tran van, tang van, dang van
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - ((nhung doanh) OR (nhung danh)) chu bang cong ((tan van) or (luan van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((nhung doanh) OR (nhung danh)) chu bang cong ((tan van) OR (luan van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((nhung doanh) OR (nhung danh)) chu bang cong ((tan van) or (luan van)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((nhung doanh) OR (nhung danh)) chu bang cong ((tan van) or (luan van)) ban*.