Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
thien danh » thien anh, thien dang, thien thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua thong » cua thuong, cua khong, cua tong
hua khong » hoa khong, cua khong, hoac khong
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien danh) or (hieu manh)) - hanh trang ((cua thong) or (hua khong)) cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (hieu manh)) - hanh trang ((cua thong) OR (hua khong)) cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (hieu manh)) - hanh trang ((cua thong) or (hua khong)) cong dan van ban*.