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