Perhaps you should try some spelling variations:
"economic interpretationism" » "economic interpretations", "economic interpretation", "tectonic interpretations"
"economic intersections" » "economic interactions", "economic interaction", "economic interpretations"
"economic intervention" » "economic interaction", "economic interpretation", "economic integration"

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