Perhaps you should try some spelling variations:
structural adjustmenton » structural adjustments, structure adjustment
economics policy » economics public, economics political, economics project
2f developing » 7 developing, self developing, turf developing
20 developing » 10 developing, 20 development
f developing » 7 developing, self developing, turf developing

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: %((structural adjustmenton) OR (structural adjustment)) %((((economics policy) OR (economics policies))) OR (economic policy))%29 %((((2f developing) OR (f developing))) OR (20 developing)) countries%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((structural adjustmenton) or (structural adjustment)) %((((economics policy) or (economics policies))) or (economic policy))%29 %((((2f developing) OR (f developing))) or (20 developing)) countries%22".
• Adding a wildcard symbol may retrieve word variants: %((structural adjustmenton) or (structural adjustment)) %((((economics policy) or (economics policies))) or (economic policy))%29 %((((2f developing) OR (f developing))) or (20 developing)) countries%22*.