Perhaps you should try some spelling variations:
chung huong » nhung huong, chuong duong, nhung phuong
chieu sach » chiet tach, chieu sang, chieu xanh
luan chung » luan chinh
doanh van » doan van, doanh va, doanh ban
van luan » van quan, van tuan, von luan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) OR (chinh sach)) - doanh van luan chung huong dan chan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chinh sach)) - doanh van luan chung huong dan chan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chinh sach)) - doanh van luan chung huong dan chan cau*.