Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » thong cong, hang cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
ban thanh » ban hanh, ban hang
dan chan » dan gian, dan ca, van chat
mang va » mang vua, hang va, bang va

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 - cach mang va ((nhung cong) OR (dung cong)) ((dan chan) or (ban thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - cach mang va ((nhung cong) OR (dung cong)) ((dan chan) OR (ban thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - cach mang va ((nhung cong) OR (dung cong)) ((dan chan) or (ban thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - cach mang va ((nhung cong) OR (dung cong)) ((dan chan) or (ban thanh)) cau*.