Perhaps you should try some spelling variations:
designed conclusions » designed conclusion, design conclusions, designs conclusions
christian designed » christianity designed, christ designed, christian divine
20th century » 18th century
2.1 germany » 21 germany, 2017 germany, 9.13 germany
ref history » reef history, brief history, bief history
11 germany » 11 german, 1918 germany, 7 germany
2.2 20th » 2020 20th, 2023 20th, 2021 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 designed conclusions %((2.1 germany) OR (11 germany)) %ref history %2.2 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %christian designed conclusions %((2.1 germany) or (11 germany)) %ref history %2.2 20th century%22*.