Perhaps you should try some spelling variations:
dung cong » dung trong
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
anh dang » anh dong, anh dung, anh bang
dang qua » dung qua, danh qua, dang quang
qua dung » quang dung, su dung, qua song
cong san » cong tac
san van » tan van, luan van, tran van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (chu manh)) - anh dang qua dung cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu manh)) - anh dang qua dung cong san van ban*.