Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan ban » can ban, chat ban, chan nan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((chieu xanh) OR (hieu lang))) OR (chieu sach)) - thanh trung cua nhung cong dan chan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((chieu xanh) OR (hieu lang))) OR (chieu sach)) - thanh trung cua nhung cong dan chan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) OR (hieu lang))) OR (chieu sach)) - thanh trung cua nhung cong dan chan ban*.