Perhaps you should try some spelling variations:
weser » welser (Expand Search), weber (Expand Search), wesen (Expand Search)
wieger » wiener (Expand Search), wiege (Expand Search), pieger (Expand Search)
wieder » lieder (Expand Search)
wiese » wiege (Expand Search), giese (Expand Search), diese (Expand Search)
wieser » wieger (Expand Search), gieser (Expand Search), dieser (Expand Search), wiener (Expand Search)
wiesel » wiegel (Expand Search), giesel (Expand Search), diesel (Expand Search), ziesel (Expand Search)
dieser » dieter (Expand Search), diesem (Expand Search), dieses (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((weser OR wieger) OR walter) OR ((wieder OR ((wiese OR wieser) OR wiesel)) OR dieser)) muller~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((weser OR wieger) OR walter) OR ((wieder OR ((wiese OR wieser) OR wiesel)) OR dieser)) muller".
• Adding a wildcard symbol may retrieve word variants: (((weser OR wieger) OR walter) OR ((wieder OR ((wiese OR wieser) OR wiesel)) OR dieser)) muller*.