Perhaps you should try some spelling variations:
20 germany » 8 germany, 5 germany, 6 germany
21 germany » 2.1 germany, 11 germany, 1 germany
2f history » 2.1 history, imf history, etf history
2 germany » 12 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: %22agriculture AND state %((((((2 germany) OR (20 germany))) OR (7 germany))) OR (21 germany)) %2f history %2f ((20th century) OR (18th century))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %((((((2 germany) or (20 germany))) or (7 germany))) or (21 germany)) %2f history %2f ((20th century) OR (18th century))%22".
• Adding a wildcard symbol may retrieve word variants: %22agriculture and state %((((((2 germany) or (20 germany))) or (7 germany))) or (21 germany)) %2f history %2f ((20th century) OR (18th century))%22*.