Perhaps you should try some spelling variations:
christian laity » christian faith, christian charity, christian life
christian upon » christians upon, christian union, christianity upon
bief history » brief history, brief hystory, imf history
20th century » 18th century
ref history » reef history, brief history, imf history
20 germany » 7 germany, 8 germany, 5 germany
2 germany » 7 germany, 2 german, 8 germany
2f 20th » 20 20th, 2.2 20th

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: %((christian upon) OR (christian laity)) conversations %((20 germany) OR (2 germany)) %((ref history) OR (bief history)) %2f 20th century%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((christian upon) or (christian laity)) conversations %((20 germany) or (2 germany)) %((ref history) OR (bief history)) %2f 20th century%22".
• Adding a wildcard symbol may retrieve word variants: %((christian upon) or (christian laity)) conversations %((20 germany) or (2 germany)) %((ref history) OR (bief history)) %2f 20th century%22*.