Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
thanh tung » thanh cong
cong dang » cong dong, cong dung, cong danh
thanh cac » hanh cac, thanh bac, thanh ca
tung qua » dung qua, tuong quan, trung quan
qua tong » qua trong, qua song, qua cong
cong dan » cong san, cong tan, huong dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chiet tach)) - thanh tung qua tong ((cong dang) OR (cong dan)) thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chiet tach)) - thanh tung qua tong ((cong dang) OR (cong dan)) thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (chiet tach)) - thanh tung qua tong ((cong dang) OR (cong dan)) thanh cac".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chiet tach)) - thanh tung qua tong ((cong dang) OR (cong dan)) thanh cac*.