Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trang » canh tranh, hanh trinh, minh trang
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong san » cong tac
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: ho ((chieu xanh) OR (chieu tinh)) - ((thanh trung) or (hanh trang)) cua bang cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu tinh)) - ((thanh trung) OR (hanh trang)) cua bang cong san van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu tinh)) - ((thanh trung) or (hanh trang)) cua bang cong san van ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu tinh)) - ((thanh trung) or (hanh trang)) cua bang cong san van ban*.