Perhaps you should try some spelling variations:
"economic interventionism" » "economic intervention", "ergonomic interventions", "economic intersections"
"economic interventions" » "economic intervention", "ergonomic interventions", "economic intersections"
"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 interventions"))) OR ((("economic interactions") OR ("economic interaction")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"economic interventionism\") OR (\"economic interventions\"))) or (((\"economic interactions\") or (\"economic interaction\"))))".
• Removing quotes may allow a broader search: (((( economic interventionism ) OR ( economic interventions ))) or ((( economic interactions ) or ( economic interaction )))).
• Adding a wildcard symbol may retrieve word variants: (((("economic interventionism") OR ("economic interventions"))) or ((("economic interactions") or ("economic interaction"))))*.