You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"\\"\\\"\\\\"((((\\\\"practical guidebook to biostatistical AND epidemiology.\\\\\") OR (\\\\"practical guidebook to biostatistical AND epidemiology.\\\\\"))) OR (\\\\"practice guide to statistics AND epidemiology.\\\\\"))*\\\\"\\\"\\"\"".
• Removing quotes may allow a broader search: \ \\ ((((\\ practical guidebook to biostatistical AND epidemiology.\\\ ) OR (\\ practical guidebook to biostatistical AND epidemiology.\\\ ))) OR (\\ practice guide to statistics AND epidemiology.\\\ ))*\\ \.