Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh cung » thanh cuong, thanh cong, thanh tung
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
tong cong » trong cong, cong cong, dung cong
van thanh » ban thanh, van tuan
cung cap » trung cap
dan toan » van toan, dan than, manh toan

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 cung cap ((nhung cong) or (tong cong)) ((van thanh) or (dan toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh cung cap ((nhung cong) OR (tong cong)) ((van thanh) OR (dan toan)) cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh cung cap ((nhung cong) or (tong cong)) ((van thanh) or (dan toan)) cau*.