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 (((11 germany) OR (7 germany)))) %((imf history) OR (brief history)) %((2f 20th) OR (2.2 20th)) century%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22agriculture and state %((2 germany) or (((11 germany) or (7 germany)))) %((imf history) OR (brief history)) %((2f 20th) or (2.2 20th)) century%22*".