Perhaps you should try some spelling variations:
self education » self medication, deaf education, self replication
reef history » reeves history, reef fishery
2f history » etf history, ref history, tnf history
2 germany » 7 germany, 2 german, 8 germany

Try widening your search to All Fields.

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