Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
thanh tran » thanh trang, thanh toan, thanh tra
van thuong » va thuong, van chuong, van phuong
cong vang » cong quang, cong ngang, cong san
cong lang » cong luong, cong quang, cong ngang
tran van » luan van
van cau » van dau, van hau, van chat

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)) - thanh tran van thuong ((cong vang) or (cong lang)) van cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - thanh tran van thuong ((cong vang) OR (cong lang)) van cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - thanh tran van thuong ((cong vang) or (cong lang)) van cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sang)) - thanh tran van thuong ((cong vang) or (cong lang)) van cau*.