Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
nhung cong » dung cong, thong cong, hang cong
trung dap » trung cap, trung dai, trung lap
trung dam » trung tam, trung dai, trong dam
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: doi ((chieu sach) OR (chinh sach)) - thanh ((trung dap) or (trung dam)) nhung cong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chinh sach)) - thanh ((trung dap) OR (trung dam)) nhung cong dan khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) OR (chinh sach)) - thanh ((trung dap) or (trung dam)) nhung cong dan khan cap".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) OR (chinh sach)) - thanh ((trung dap) or (trung dam)) nhung cong dan khan cap*.