Perhaps you should try some spelling variations:
"economic interventionism" » "economic interventions", "economic intervention", "ergonomic interventions"
"economic intersections" » "economic intervention", "economic interpretations", "ergonomic interventions"
"economic interactions" » "economic integration", "dynamic interactions", "economics international", "economic integrations", "economic informations"
"economic interaction" » "economic integration", "dynamic interaction", "economic information"

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: (((("economic interventionism") OR ("economic intersections"))) OR ((("economic interactions") OR ("economic interaction")))).
• Removing quotes may allow a broader search: (((( economic interventionism ) or ( economic intersections ))) or ((( economic interactions ) or ( economic interaction )))).
• Adding a wildcard symbol may retrieve word variants: (((("economic interventionism") or ("economic intersections"))) or ((("economic interactions") or ("economic interaction"))))*.