Perhaps you should try some spelling variations:
"nationale region stadt" » "nationale din stadt" (Expand Search), "nationalae region stadt" (Expand Search), "nationalene region stadt" (Expand Search), "nationalere region stadt" (Expand Search)
"national region state" » "nationala region state" (Expand Search), "nationalen region state" (Expand Search), "nationaler region state" (Expand Search)
"national region stadt" » "nationala region stadt" (Expand Search), "nationalen region stadt" (Expand Search), "nationaler region stadt" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("national region state") OR ((("national region stadt") OR ("nationale region stadt"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"national region state\") OR (((\"national region stadt\") OR (\"nationale region stadt\"))))".
• Removing quotes may allow a broader search: (( national region state ) OR ((( national region stadt ) OR ( nationale region stadt )))).
• Adding a wildcard symbol may retrieve word variants: (("national region state") OR ((("national region stadt") OR ("nationale region stadt"))))*.