Perhaps you should try some spelling variations:
"der regional economics conditiond." » "der regional economic conditiond.", "der regional economic condition.", "der regional economics cognition.", "der regionale economics conditiond.", "per regional economics conditiond.", "der regionalen economics conditiond."
"durch regionale economic conditions." » "durch regional economic conditions.", "durch regionalism economic conditions.", "durch regional economy conditions.", "der regionale 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: (("durch regionale economic conditions.") OR ("der regional economics conditiond."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"durch regionale economic conditions.\") OR (\"der regional economics conditiond.\"))".
• Removing quotes may allow a broader search: (( durch regionale economic conditions. ) OR ( der regional economics conditiond. )).
• Adding a wildcard symbol may retrieve word variants: (("durch regionale economic conditions.") OR ("der regional economics conditiond."))*.