Perhaps you should try some spelling variations:
"heterodoxen okonomiks" » "heterodoxen okonomik", "heterodoxe okonomik", "heterodox economics"
"heterodox economist" » "heterodox economics", "heterodox economy"
"heterodox economic" » "heterodox economics", "heterodoxen okonomik"

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: (((("heterodox economist") OR ("heterodoxen okonomiks"))) OR ("heterodox economic")).
• Removing quotes may allow a broader search: (((( heterodox economist ) or ( heterodoxen okonomiks ))) or ( heterodox economic )).
• Adding a wildcard symbol may retrieve word variants: (((("heterodox economist") or ("heterodoxen okonomiks"))) or ("heterodox economic"))*.