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