Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
khong cong » thong cong, khong cang, chong cong
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
cua khong » hua khong, cua phuong, cua thuong
chinh can » chinh ban, chinh cau, chinh ngan
cong dan » cong san, cong tan, huong dan
chinh ca » chinh ta, chinh va, chinh tai

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 - canh tranh cua khong cong dan ((chinh can) OR (chinh ca))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh tranh cua khong cong dan ((chinh can) OR (chinh ca))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh cua khong cong dan ((chinh can) OR (chinh ca))*.