Perhaps you should try some spelling variations:
imf economic » gulf economic, 8 economic
2f economic » 2.1 economic, 2.0 economic, ddf economic
2.2 humor » 2.2 humoral, 2.2 human, 12 humor
2f humor » 23 humor, _ humor, 6 humor

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: %22ireland %((2f economic) OR (imf economic)) conditions %((2f humor) OR (2.2 humor))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22ireland %((2f economic) OR (imf economic)) conditions %((2f humor) or (2.2 humor))%22".
• Adding a wildcard symbol may retrieve word variants: %22ireland %((2f economic) OR (imf economic)) conditions %((2f humor) or (2.2 humor))%22*.