Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
van nhuong » van chuong, van phuong, van huong
tranh van » tran van, trinh van, thanh van
cong doan » cong dan, dong doanh, cong san
cong hoan » cong hoa, dong hoa, cong san

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sang)) - canh tranh van nhuong ((cong doan) OR (cong hoan)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - canh tranh van nhuong ((cong doan) OR (cong hoan)) phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sang)) - canh tranh van nhuong ((cong doan) OR (cong hoan)) phan tu".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - canh tranh van nhuong ((cong doan) OR (cong hoan)) phan tu*.