Perhaps you should try some spelling variations:
"johann sebastian franck" » "johann sebastien francois", "johann sebastian bach", "johann sebastian hans"
"johann sebastian bahr" » "johann sebastian bachs", "johann sebastian barry", "johann sebastian bauer"

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: (("johann sebastian franck") OR ("johann sebastian bahr")).
• Removing quotes may allow a broader search: (( johann sebastian franck ) or ( johann sebastian bahr )).
• Adding a wildcard symbol may retrieve word variants: (("johann sebastian franck") or ("johann sebastian bahr"))*.