Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
cua dong » chua dong, cua cong, cua dang
hoa dong » hoat dong, ha dong, hoa cong
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: hoc hieu manh - hanh trang ((cua dong) or (hoa dong)) cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh trang ((cua dong) OR (hoa dong)) cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trang ((cua dong) or (hoa dong)) cong dan than ban*.