Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung thanh » truong thanh
thanh xuong » thanh huong, thanh cuong, thanh duong
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
xuong con » xuong cong, luong cong, duong cong
con dan » cong dan, co dan, con ban
can ban » toan ban

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 (chieu sang)) - thanh trung thanh xuong con dan ((can ban) OR (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu sang)) - thanh trung thanh xuong con dan ((can ban) OR (van ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (chieu sang)) - thanh trung thanh xuong con dan ((can ban) OR (van ban))".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu sang)) - thanh trung thanh xuong con dan ((can ban) OR (van ban))*.