Perhaps you should try some spelling variations:
"nationale region staat" » "nationale din staat" (Expand Search), "nationalene region staat" (Expand Search), "nationalere region staat" (Expand Search), "nationalese region staat" (Expand Search)
"national regional staat" » "nationalen regional staat" (Expand Search), "nationaler regional staat" (Expand Search), "nationales regional staat" (Expand Search)
"nationala region staat" » "nationalena region staat" (Expand Search), "nationalera region staat" (Expand Search), "nationalesa region staat" (Expand Search), "nationalen region staat" (Expand Search), "nationaler region staat" (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 regional staat") OR ((("nationala region staat") OR ("nationale region staat"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"national regional staat\") OR (((\"nationala region staat\") OR (\"nationale region staat\"))))*".
• Removing quotes may allow a broader search: (( national regional staat ) OR ((( nationala region staat ) OR ( nationale region staat ))))*.