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