Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
trung tuan » trung thanh, trung tam, tran tuan
truong cao » truong dai
thong cong » trong cong, tong cong, thong thong
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam

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) OR (chinh sach)) - thanh ((trung tuan) or (truong cao)) thong cong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - thanh ((trung tuan) OR (truong cao)) thong cong dan khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chinh sach)) - thanh ((trung tuan) or (truong cao)) thong cong dan khan cap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chinh sach)) - thanh ((trung tuan) or (truong cao)) thong cong dan khan cap*.