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