Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
minh trang » tinh trang, minh hoang, minh tuan
hanh dong » anh dong, ha dong
cua hanh » cua thanh, cua hang, cua manh
dong san » cong san, dong bang, dong von
san van » tan van, luan van, tran 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) OR (chieu sang)) - ((minh trang) or (canh tranh)) cua hanh dong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - ((minh trang) OR (canh tranh)) cua hanh dong san van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - ((minh trang) or (canh tranh)) cua hanh dong san van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sang)) - ((minh trang) or (canh tranh)) cua hanh dong san van ban*.