Perhaps you should try some spelling variations:
"der regional economic foundations." » "der regional economic functions.", "der regional economic fluctuations.", "der regional economic function.", "der global economic foundations.", "der regionale economic foundations.", "per regional economic foundations.", "der regionalen economic foundations."
"der indian economic conditions." » "der india economic conditions.", "der india's economic conditions.", "der indian economy conditions.", "older indian economic conditions.", "d indian economic conditions.", "der median economic conditions."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("der indian economic conditions.") or ("der regional economic foundations."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("der indian economic conditions.") OR ("der regional economic foundations.")).
• Removing quotes may allow a broader search: (( der indian economic conditions. ) or ( der regional economic foundations. )).
• Adding a wildcard symbol may retrieve word variants: (("der indian economic conditions.") or ("der regional economic foundations."))*.