Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
thanh tung » thanh cong
tham thong » pham thuong, than thuong, thoai thong
thong cong » trong cong, tong cong, thong thong
tung tham » tuong tham, tung pham, cung tham
dan phan » doan phan, van phan, dam phan
dan chan » dan gian, dan ca, 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: theo ((chieu sach) or (chiet tach)) - thanh tung tham thong cong ((dan phan) OR (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chiet tach)) - thanh tung tham thong cong ((dan phan) OR (dan chan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chiet tach)) - thanh tung tham thong cong ((dan phan) OR (dan chan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chiet tach)) - thanh tung tham thong cong ((dan phan) OR (dan chan)) cau*.