Perhaps you should try some spelling variations:
"heinrich manns" » "heinrich mann", "heinrich mannns", "heinrich maxns", "heinrich maikns"
"heinrich maxns" » "heinrich mann", "heinrich hanns", "heinrich max"
"heinrich man" » "heinrich mann", "heinrich max", "heinrich maik"

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: (((("heinrich manns") OR ("heinrich maxns"))) OR ("heinrich man")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"heinrich manns\") OR (\"heinrich maxns\"))) or (\"heinrich man\"))".
• Removing quotes may allow a broader search: (((( heinrich manns ) OR ( heinrich maxns ))) or ( heinrich man )).
• Adding a wildcard symbol may retrieve word variants: (((("heinrich manns") OR ("heinrich maxns"))) or ("heinrich man"))*.