Perhaps you should try some spelling variations:
"nationale region stadte" » "nationale din stadte" (Expand Search)
"nationala regional state" » "nationalen regional state" (Expand Search), "nationaler regional state" (Expand Search)
"nationales legionar stadt" » "nationales legionaren stadt" (Expand Search), "nationales legion 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: (("nationala regional state") OR ((("nationale region stadte") OR ("nationales legionar stadt"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nationala regional state\") OR (((\"nationale region stadte\") OR (\"nationales legionar stadt\"))))*".
• Removing quotes may allow a broader search: (( nationala regional state ) OR ((( nationale region stadte ) OR ( nationales legionar stadt ))))*.