Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tranh xuat » tranh cua, tran xuan, tranh luan
xuat duong » xuat thuong, xuat phuong, xuat truong
doi chieu » doc hieu, doi chi, ho chieu
duong van » duong va, luong va, dang van
cong san » cong tac
phan cau » phan dau, phan cac, phan lap

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 xuat duong ((cong san) or (duong van)) ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh tranh xuat duong ((cong san) OR (duong van)) ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh xuat duong ((cong san) or (duong van)) ((phan cau) or (phan tu))*.