Perhaps you should try some spelling variations:
"krieg gustav heinrich" » "krieg auguste heinrich", "ing gustav heinrich", "klimt gustav heinrich", "riehl gustav heinrich"
"erik gustav resch" » "erik gustav roth", "erik gustaf resch", "werk gustav resch", "devin gustav resch"
"risk gustav erich" » "risk gustavi erici", "risk gustav friedrich", "risk gustav brink"

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: (("erik gustav resch") OR ((("risk gustav erich") OR ("krieg gustav heinrich")))).
• Removing quotes may allow a broader search: (( erik gustav resch ) or ((( risk gustav erich ) or ( krieg gustav heinrich )))).
• Adding a wildcard symbol may retrieve word variants: (("erik gustav resch") or ((("risk gustav erich") or ("krieg gustav heinrich"))))*.