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 ((biostatistical OR statistics) OR ((biostatistical OR statistics) OR (biostatistical OR statistics))) AND epidemiology.\\ ) OR (\\ ((practice guidebook) OR (practical guidebook)) to ((biostatistical OR statistics) OR ((biostatistical OR statistics) OR (biostatistical OR statistics))) AND epidemiology.\\ ))) OR (\\ practice guide to statistical AND epidemiology.\\ ))*\~.

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