Perhaps you should try some spelling variations:
christian opened » christ opened
christian open » christian open'd, christian popes, christian hope
brief hystory » brief history, brief herstory, brief story
bief history » brief history, imf history, reef history
ref history » reef history, brief history, imf history
21 germany » 11 germany, 2 germany, 20 germany

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 open) OR (christian opened)) conversations %21 germany %((ref history) OR (((bief history) OR (brief hystory)))) %2.2 ((20th century) OR (18th century))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((christian open) or (christian opened)) conversations %21 germany %((ref history) or (((bief history) or (brief hystory)))) %2.2 ((20th century) OR (18th century))%22".
• Adding a wildcard symbol may retrieve word variants: %((christian open) or (christian opened)) conversations %21 germany %((ref history) or (((bief history) or (brief hystory)))) %2.2 ((20th century) OR (18th century))%22*.