Perhaps you should try some spelling variations:
nationalism economic » national economic, nations economic, national economy
economic conditiond » economic condition, economic conditons, economics cognition
regional economic » global economic
der nationalism » new nationalism, war nationalism, des nationalismus
der regional » der regionale, per regional, der regionalen

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: (( der regional economic conditions. ) OR ( der nationalism economic conditiond. ))~.
• Adding a wildcard symbol may retrieve word variants: (( der regional economic conditions. ) or ( der nationalism economic conditiond. ))*.