Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung dung
chieu sach » chinh sach, chiet tach, chieu sang
tranh quan » tranh quang, trinh quan, tranh luan
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
phan dau » phan tu, hang dau
toan ban » van ban

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 quan ((nhung huong) OR (nhung cong)) dan ((phan dau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh tranh quan ((nhung huong) OR (nhung cong)) dan ((phan dau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh tranh quan ((nhung huong) OR (nhung cong)) dan ((phan dau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh quan ((nhung huong) OR (nhung cong)) dan ((phan dau) or (toan ban))*.