Perhaps you should try some spelling variations:
12 economics » 12 economic, 14 economics, 13 economics
2 economics » 2 economic
4 economics » 5 economics, 3 economics
1 economics » 1 economic, 5 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 %((((12 economics) OR (2 economics))) OR (((4 economic) OR (((4 economics) OR (1 economics)))))) conditions%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22ireland %((((12 economics) OR (2 economics))) or (((4 economic) or (((4 economics) or (1 economics)))))) conditions%22".
• Adding a wildcard symbol may retrieve word variants: %22ireland %((((12 economics) OR (2 economics))) or (((4 economic) or (((4 economics) or (1 economics)))))) conditions%22*.