Perhaps you should try some spelling variations:
2self education » elf education, self educational, deaf education
self education » self medication, deaf education, self replication
imf history » brief history
21 germany » 2.1 germany, 11 germany, 2 germany
13 bavaria » _ bavaria, ne bavaria, ii bavaria
2f history » etf history, ref history, tnf history

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 %((2self education) OR (self education)) %21 germany %13 bavaria %((2f history) OR (imf history))%22.
• Adding a wildcard symbol may retrieve word variants: %22jews %((2self education) or (self education)) %21 germany %13 bavaria %((2f history) or (imf history))%22*.