Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » hanh trinh, hanh trang, lanh tranh
hoc chieu » hoc thieu, ho chieu, hoc hien
cua thang » cua thanh, xua thang, cua thuong
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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

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