Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
chat quang » chat luong, pham quang
cuong danh » cuon danh, huong dan, cuong linh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cuong dan » huong dan, cong dan, tuong dan
thanh ban » thanh san, thanh van, thanh bac

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 sach) or (chiet tach)) - hanh tinh chat quang ((cuong dan) OR (cuong danh)) thanh ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - hanh tinh chat quang ((cuong dan) OR (cuong danh)) thanh ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chiet tach)) - hanh tinh chat quang ((cuong dan) OR (cuong danh)) thanh ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chiet tach)) - hanh tinh chat quang ((cuong dan) OR (cuong danh)) thanh ban*.