Perhaps you should try some spelling variations:
nhung phong » nhung phuong, nhung chong, nguong phong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nung phong » rung phong, dung phong, nhung phuong
van thanh » ban thanh, van tuan
thanh lap » thanh san, phan lap, thanh hai
hanh van » thanh van, khanh van, hanh va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - hanh van ban ((nhung phong) OR (nung phong)) van thanh lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh van ban ((nhung phong) OR (nung phong)) van thanh lap".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh van ban ((nhung phong) OR (nung phong)) van thanh lap*.