Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tham » trung thanh, trung thang, trung ha
thong cong » trong cong, tong cong, thong thong
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 cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh ((trung tham) OR (trung tam)) thong cong dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trung tham) OR (trung tam)) thong cong dan than cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung tham) OR (trung tam)) thong cong dan than cau*.