Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trung » thanh trung, hanh trang, danh trung
manh trung » thanh trung, manh hung, sinh trung
nhung cong » dung cong, thong cong, hang cong
manh tung » manh hung, thanh tung
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cong san » cong tac
san than » sang than, san thanh, ban 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 nganh - ((((hanh trung) or (manh trung))) or (manh tung)) cua nhung cong san than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu nganh - ((((hanh trung) OR (manh trung))) OR (manh tung)) cua nhung cong san than ban.
• Adding a wildcard symbol may retrieve word variants: doc hieu nganh - ((((hanh trung) or (manh trung))) or (manh tung)) cua nhung cong san than ban*.