Perhaps you should try some spelling variations:
structural adjustmenton » structural adjustments, structure adjustment
28economic policy » economic policy, economics policy, economy policy
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: %((structural adjustmenton) OR (structural adjustment)) %28economic policy%29 %70 developing countries%22.
• Adding a wildcard symbol may retrieve word variants: %((structural adjustmenton) or (structural adjustment)) %28economic policy%29 %70 developing countries%22*.