Perhaps you should try some spelling variations:
self education » self medication, deaf education, self replication
ref history » reef history, bief history, imf history
12 germany » 11 germany, 12 german, 14 germany
ii bavaria » viz bavaria, _ bavaria, ne bavaria
2 germany » 7 germany, 2 german, 8 germany

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: %22jews %self education %((2 germany) OR (12 germany)) %ii bavaria %((ref history) OR (brief history))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22jews %self education %((2 germany) OR (12 germany)) %ii bavaria %((ref history) or (brief history))%22".
• Adding a wildcard symbol may retrieve word variants: %22jews %self education %((2 germany) OR (12 germany)) %ii bavaria %((ref history) or (brief history))%22*.