Perhaps you should try some spelling variations:
khung hoang » phuong hoang
nhung hoang » phuong hoang, nhung cong, nhung lang
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
trung tuan » trung thanh, trung tam, tran tuan
ban chau » ban chat, ban cau, ban chan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu xanh) or (chieu sach)) - hanh trung tuan ((nhung hoang) OR (khung hoang)) van ban chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu xanh) OR (chieu sach)) - hanh trung tuan ((nhung hoang) OR (khung hoang)) van ban chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu xanh) or (chieu sach)) - hanh trung tuan ((nhung hoang) OR (khung hoang)) van ban chau".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu xanh) or (chieu sach)) - hanh trung tuan ((nhung hoang) OR (khung hoang)) van ban chau*.