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

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

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