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

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

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