Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
cong hoan » cong hoa, dong hoa, cong san
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
hoan van » hoang van, hoa van, doan van

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 - thanh thuong ((cua dung) OR (cua dang)) cong hoan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh thuong ((cua dung) OR (cua dang)) cong hoan van ban*".