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

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