Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
canh manh » lanh manh, canh tranh, cach mang
cong dang » cong dan, cong dung, cong danh
doc hieu » toc thieu, hoc thieu, hoc hien
manh cua » doanh cua, ban cua
cua dang » cua cong, cua ban
hanh tu » anh tu, danh tu

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 nganh - canh manh cua dang ((cong dang) or (cong dong)) hanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu nganh - canh manh cua dang ((cong dang) OR (cong dong)) hanh tu*.