Perhaps you should try some spelling variations:
chieu manh » chieu xanh, chu manh, chieu sach
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh dung » thanh dung, anh dung, hanh dong
luan tong » luan tuong, luan cong, luan nong
luan dong » luan cong, quan dong, luan nong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu manh) or (hieu manh)) - hanh dung ((luan tong) OR (luan dong)) cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu manh) OR (hieu manh)) - hanh dung ((luan tong) OR (luan dong)) cong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu manh) or (hieu manh)) - hanh dung ((luan tong) OR (luan dong)) cong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu manh) or (hieu manh)) - hanh dung ((luan tong) OR (luan dong)) cong dan toan tap*.