Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
tranh hoa » thanh hoa, trinh hoa, tranh ha
dung cong » dung trong
hoa dung » khoa dung, hoa duong, hoa dong
cong san » cong tac
toan ban » van ban
tan ban » tang ban, van ban, can 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 xanh) or (chieu sang)) - canh tranh hoa dung cong san ((tan ban) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - canh tranh hoa dung cong san ((tan ban) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sang)) - canh tranh hoa dung cong san ((tan ban) OR (toan ban))*".