Perhaps you should try some spelling variations:
\"heinrich » \"enrich (Expand Search)
\"hsinnreich » \"sinnreich (Expand Search), \"hskinnreich (Expand Search), \"hspinnreich (Expand Search)
\"hinrichs » \"hindrichs (Expand Search), \"henrich (Expand Search), \"hinsicht (Expand Search)
\"sinrich » \"sinnreich (Expand Search), \"gingrich (Expand Search), \"pintrich (Expand Search), \"skinrich (Expand Search), \"spinrich (Expand Search)
hsin\" » hskin\" (Expand Search), hspin\" (Expand Search)
sin\" » skin\" (Expand Search), spin\" (Expand Search)

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: "\"((\\"heinrich hein\\") OR ((((\\"hsinnreich OR \\"hinrichs) hsin\\") OR (\\"sinrich sin\\"))))\"".
• Removing quotes may allow a broader search: (( heinrich hein ) OR (((( hsinnreich OR hinrichs) hsin ) OR ( sinrich sin )))).