Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
hanh mang » nhanh mang, nhanh lang, thanh hang
dung cong » dung trong
cong doan » cong dan, cong hoan, dong doanh
cua dung » cua dang, cua dong, qua dung
doan van » doan va, hoang van, luan van

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 sach)) - ((hanh mang) or (hanh trang)) cua dung cong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - ((hanh mang) OR (hanh trang)) cua dung cong doan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sach)) - ((hanh mang) or (hanh trang)) cua dung cong doan van ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sach)) - ((hanh mang) or (hanh trang)) cua dung cong doan van ban*.