Perhaps you should try some spelling variations:
thanh phuong » thanh huong, thanh chuong, khanh phong
phuong cham » phuong phap, phuong thao
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, mot chieu
dung dong » dung cong, vung dong, dung trong
dung dat » dung va, dung tai
ban can » ban dan, ban hang, ban hanh

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 phuong cham ((dung dat) OR (dung dong)) van ban can~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh phuong cham ((dung dat) OR (dung dong)) van ban can*".