Perhaps you should try some spelling variations:
chieu manh » chieu xanh, chu manh, chieu sach
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh manh » lanh manh, canh tranh, cach mang
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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)) - canh manh ((cua dung) or (cua ban)) cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu manh) OR (hieu manh)) - canh manh ((cua dung) OR (cua ban)) cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu manh) OR (hieu manh)) - canh manh ((cua dung) or (cua ban)) cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu manh) OR (hieu manh)) - canh manh ((cua dung) or (cua ban)) cong dan toan cau*.