Perhaps you should try some spelling variations:
weser » weber (Expand Search), eser (Expand Search), leser (Expand Search)
wesen » westen (Expand Search)
welser » belser (Expand Search), elser (Expand Search), welter (Expand Search)
wieser » wieder (Expand Search), wiener (Expand Search), dieser (Expand Search)
diese » dieses (Expand Search), dieser (Expand Search), diebe (Expand Search)
diesem » diesesm (Expand Search), dieserm (Expand Search), diebem (Expand Search), dieses (Expand Search)
gieser » grieser (Expand Search), dieser (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 wesen) OR welser) OR ((((wieser OR diese) OR gieser) OR giese) OR diesem)) muller~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((weser OR wesen) OR welser) OR ((((wieser OR diese) OR gieser) OR giese) OR diesem)) muller".
• Adding a wildcard symbol may retrieve word variants: (((weser OR wesen) OR welser) OR ((((wieser OR diese) OR gieser) OR giese) OR diesem)) muller*.