Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh dang » hanh dong, hanh dung, hanh trang
hanh mang » nhanh mang, hanh trang, nhanh lang
nang cong » nang song, dang cong, bang cong
doc hieu » toc thieu, hoc thieu, hoc hien
anh dang » anh dong, anh dung, anh bang
cua nang » chua nang, cua dang, cua hang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 xanh - ((((hanh dang) or (hanh mang))) or (anh dang)) cua nang cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((((hanh dang) OR (hanh mang))) OR (anh dang)) cua nang cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((((hanh dang) or (hanh mang))) or (anh dang)) cua nang cong dan than ban*.