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

• If you are trying to use Boolean operators, they must be ALL CAPS: \ \\ ((((\\\ practical guidebook to statistics AND epidemiology.\\\ ) OR (\\\ practical guidebook to statistics AND epidemiology.\\\ ))) OR (\\\ ((practice guide) OR (practical guide)) to statistical AND epidemiology.\\\ ))*\\~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\ \\ ((((\\\ practical guidebook to statistics and epidemiology.\\\ ) OR (\\\ practical guidebook to statistics and epidemiology.\\\ ))) OR (\\\ ((practice guide) OR (practical guide)) to statistical and epidemiology.\\\ ))*\\~".
• Adding a wildcard symbol may retrieve word variants: \ \\ ((((\\\ practical guidebook to statistics and epidemiology.\\\ ) OR (\\\ practical guidebook to statistics and epidemiology.\\\ ))) OR (\\\ ((practice guide) OR (practical guide)) to statistical and epidemiology.\\\ ))*\\*.