Perhaps you should try some spelling variations:
chiet tach » chieu sach
dung cong » dung trong
ho chiet » ho chieu, ho thiet, hoc thiet
tranh va » tranh van, trang va, trinh va
tan than » tan thanh, tan tran, tam than
ban than » ban thanh, van thanh, ban hang
va dung » van dung, va duong, vat dung

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 tranh va dung cong ((tan than) OR (ban than)) man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - canh tranh va dung cong ((tan than) OR (ban than)) man".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - canh tranh va dung cong ((tan than) OR (ban than)) man*.