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