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

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

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