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 ((((biostatistics OR statistical) OR statistical) OR statistical) OR statistical) AND epidemiology.\\\ ) OR (\\ practical guide to statistics AND epidemiology.\\\ ))*\\ \~".
• Adding a wildcard symbol may retrieve word variants: \ \\ ((\\ practical guidebook to ((((biostatistics OR statistical) OR statistical) OR statistical) OR statistical) AND epidemiology.\\\ ) OR (\\ practical guide to statistics AND epidemiology.\\\ ))*\\ \*.