Perhaps you should try some spelling variations:
structural adjustmenton » structural adjustments, structure adjustment
28economic policy » economic policy, economics policy, economy policy
2f developing » 70 developing, 72 developing, self developing
f developing » self developing, turf developing, 7.2 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)) %28economic policy%29 %((2f developing) OR (f developing)) countries%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((structural adjustmenton) or (structural adjustment)) %28economic policy%29 %((2f developing) OR (f developing)) countries%22".
• Adding a wildcard symbol may retrieve word variants: %((structural adjustmenton) or (structural adjustment)) %28economic policy%29 %((2f developing) OR (f developing)) countries%22*.