Perhaps you should try some spelling variations:
popularen music » popularen musik, popular music, populare musik
zur popularen » der popularen, des popularen
"texte zur populären music" » "texte zu populären music"
"texts zur populären music" » "texte zu populären music", "text zum populären music", "text zu populären music"

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: (("texte zur populären music") OR ("texts zur populären music"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"texte zur populären music\") OR (\"texts zur populären music\"))".
• Removing quotes may allow a broader search: (( texte zur populären music ) OR ( texts zur populären music )).
• Adding a wildcard symbol may retrieve word variants: (("texte zur populären music") OR ("texts zur populären music"))*.