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

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

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