Perhaps you should try some spelling variations:
union conversations » win conversations, design conversations, driven conversations
upon conversations » open conversations, spoken conversations, human conversations
bief history » brief history, brief hystory, reef history
imf history » brief history
21 germany » 2.1 germany, 11 germany, 2 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 ((upon conversations) OR (union conversations)) %21 germany %((bief history) OR (imf history)) %2.2 ((20th century) OR (18th century))%22.
• Adding a wildcard symbol may retrieve word variants: %christian ((upon conversations) or (union conversations)) %21 germany %((bief history) or (imf history)) %2.2 ((20th century) or (18th century))%22*.