Perhaps you should try some spelling variations:
22christian union » christian union, christian unity
christian upon » christians upon, christian union, christianity upon
reef history » brief history, reeves history, reef fishery
imf history » brief history
20 germany » 2 germany, _ germany, 7 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: %((22christian union) OR (christian upon)) conversations %20 germany %((reef history) OR (imf history)) %2f 18th century%22*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((22christian union) OR (christian upon)) conversations %20 germany %((reef history) or (imf history)) %2f 18th century%22*".