Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh dang » hanh dong, hanh dung, hanh mang
cong cong » cong dong, trong cong, dung cong
cong dang » cong dong, cong dan, cong dung
doc hieu » toc thieu, hoc thieu, hoc hien
anh dang » anh dong, anh dung, anh bang
dang van » hoang van, hang va
van cac » van hac, van cau, van bac

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 (anh dang)) cua cong cong dang van cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh dang) OR (anh dang)) cua cong cong dang van cac*.