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: "\"\\"\\\"\\\\"((\\"practice guidebook to (statistical OR (statistical OR statistical)) AND epidemiology.\\\\\") OR (\\"practical guide to statistics AND epidemiology.\\\\\"))\\\\"\\\"\\"\"".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"\\"\\\"\\\\"\\\\\"((\\\"practice guidebook to (statistical OR (statistical OR statistical)) and epidemiology.\\\\\\") OR (\\\"practical guide to statistics and epidemiology.\\\\\\"))\\\\\"\\\\"\\\"\\"\"".
• Removing quotes may allow a broader search: \ \\ \\\ ((\ practice guidebook to (statistical OR (statistical OR statistical)) and epidemiology.\\\\ ) OR (\ practical guide to statistics and epidemiology.\\\\ ))\\\ \\ \.