Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh trang » canh tranh, hanh trang, banh trang
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
trang va » tran van, hang va
dan toan » van toan, dan than, manh toan
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: ho ((chieu sach) or (hieu qua)) - canh trang va ((nhung cong) or (thong cong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (hieu qua)) - canh trang va ((nhung cong) OR (thong cong)) dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (hieu qua)) - canh trang va ((nhung cong) or (thong cong)) dan toan ban*.