Perhaps you should try some spelling variations:
structure adjustment » structural adjustments, structured investment, structure alignment
2f developing » f developing, self developing, turf developing
70 developing » 10 developing, 20 developing, 30 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: %((structure adjustment) OR (structural adjustment)) %((economics public) OR (economic policy))%29 %((2f developing) OR (70 developing)) countries%22.
• Adding a wildcard symbol may retrieve word variants: %((structure adjustment) or (structural adjustment)) %((economics public) or (economic policy))%29 %((2f developing) or (70 developing)) countries%22*.