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

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

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