Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tang » trung thang, trong tang, trung thanh
trung tan » trung tuan, trung tran, truong tan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((trung tan) OR (trung tang)) dung cong dan than tap~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trung tan) OR (trung tang)) dung cong dan than tap*.