Perhaps you should try some spelling variations:
dung cong » dung trong
hien xanh » hien hanh, hien nhanh, chieu xanh
danh bat » doanh bat, dinh ba
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
anh bai » sach bai, hinh bai
dan van » dang van, doan van, dao van

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 - ((anh bai) or (danh bat)) cua dung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((anh bai) OR (danh bat)) cua dung cong dan van ban*.