Perhaps you should try some spelling variations:
"nationaal-socialisme" » "national-socialisme", "nationally-socialisme", "nationale-socialisme", "nationaal-socialism"
"Nationaal-socialist" » "Nationaal-socialism"
"Nationaal-sociales" » "Nationaal-sociale", "Nationaal-socialism", "Nationaal-social"

Try widening your search to All Fields.

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: ("nationaal-socialisme" OR ("Nationaal-socialist" OR "Nationaal-sociales")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(\"nationaal-socialisme\" or (\"Nationaal-socialist\" OR \"Nationaal-sociales\"))".
• Removing quotes may allow a broader search: ( nationaal-socialisme or ( Nationaal-socialist OR Nationaal-sociales )).
• Adding a wildcard symbol may retrieve word variants: ("nationaal-socialisme" or ("Nationaal-socialist" OR "Nationaal-sociales"))*.