Perhaps you should try some spelling variations:
2.4 economic » 14 economic, 1714 economic, 14 economics
2 economics » 2 economic
4 economics » 1 economics
5 economics » 5 economic, 1 economics
3 economics » 3 economic, 1 economics

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 %((2 economics) OR (((2.4 economic) OR (((((4 economics) OR (5 economics))) OR (3 economics)))))) conditions%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22ireland %((2 economics) or (((2.4 economic) or (((((4 economics) OR (5 economics))) or (3 economics)))))) conditions%22".
• Adding a wildcard symbol may retrieve word variants: %22ireland %((2 economics) or (((2.4 economic) or (((((4 economics) OR (5 economics))) or (3 economics)))))) conditions%22*.