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

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