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

• Removing quotes may allow a broader search: \ \\ ((\\\ ((practice guidebook) OR (practical guidebook)) to biostatistics AND epidemiology.\\\ ) OR (\\\ ((practice guide) OR (practical guide)) to statistics AND epidemiology.\\\ ))~\.

Perhaps you should try some spelling variations:
"\ \\ \\\ practice guidebook OR practical guidebook to biostatistics AND epidemiology.\\\ OR \\\ practice guide OR practical guide to statistics AND epidemiology.\\\ » "\ \\ \\\ practice guidebook OR practical guidebook to biostatistical AND epidemiology.\\\ OR \\\ practice guide OR practical guide to statistical AND epidemiology.\\\ (Expand Search)