Perhaps you should try some spelling variations:
rights library » right library, rights liberty, lists library
emil warburg » m warburg
elam warburg » m warburg
max warburg » m warburg, man marburg
held rights » held right, child rights, read rights

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: the ((emil warburg) OR (((elam warburg) OR (max warburg)))) institute held rights library.
• The words AND, OR and NOT may confuse the search; try adding quotes: "the ((emil warburg) or (((elam warburg) OR (max warburg)))) institute held rights library".
• Adding a wildcard symbol may retrieve word variants: the ((emil warburg) or (((elam warburg) OR (max warburg)))) institute held rights library*.