Perhaps you should try some spelling variations:
chiet tach » chieu sach
canh doanh » hanh doanh, chinh doanh, doanh doanh
nhung cong » dung cong, thong cong, hang cong
nhung don » nhung van, nhung bo
ho chiet » ho chieu, ho thiet, hoc thiet
doanh va » doan va, doanh tai, doanh cua
dan cau » danh cau, dan ca, dat 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 chiet tach - canh doanh va ((nhung cong) or (nhung don)) hoa dan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - canh doanh va ((nhung cong) OR (nhung don)) hoa dan cau.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - canh doanh va ((nhung cong) or (nhung don)) hoa dan cau*.