Perhaps you should try some spelling variations:
1600 congresses » 1500 congresses, 1900 congresses, 1517 congresses
6 congresses » 600 congresses, 6 congress, 1648 congresses
2f church » 2d church, 27 church, f church
2 church » _ church, a church

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: %22scandinavia %((2f church) OR (2 church)) history %2f 18th century %((_ congresses) OR (((6 congresses) OR (1600 congresses))))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22scandinavia %((2f church) or (2 church)) history %2f 18th century %((_ congresses) or (((6 congresses) OR (1600 congresses))))%22".
• Adding a wildcard symbol may retrieve word variants: %22scandinavia %((2f church) or (2 church)) history %2f 18th century %((_ congresses) or (((6 congresses) OR (1600 congresses))))%22*.