Perhaps you should try some spelling variations:
2.4 economic » 14 economic, 1714 economic, 4 economics
12 economics » 1 economics, 14 economics, 13 economics
2 economics » 2 economic
12 economic » 2 economic

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 (((12 economics) OR (12 economic))))) OR (2.4 economic)) conditions%22.
• Adding a wildcard symbol may retrieve word variants: %22ireland %((((2 economics) or (((12 economics) or (12 economic))))) or (2.4 economic)) conditions%22*.