Perhaps you should try some spelling variations:
"texts zur populare musik" » "texts zur popularen musik", "texts der populare musik", "texts der popularen musik", "texts zur popularene musik", "texts war populare musik", "texts more populare musik", "texte zur populare musik", "texte zu populare musik", "text zu populare musik"
"texts zur popular music" » "texts zur popularen music", "texts war popular music", "texts more popular music", "texte zur popular music", "texte zu popular music", "text zu popular music"
"text zum popular music" » "text from popular music", "text zum formular music", "text im popular 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: (("texts zur populare musik") or ((("texts zur popular music") or ("text zum popular music"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("texts zur populare musik") OR ((("texts zur popular music") OR ("text zum popular music")))).
• Removing quotes may allow a broader search: (( texts zur populare musik ) or ((( texts zur popular music ) or ( text zum popular music )))).
• Adding a wildcard symbol may retrieve word variants: (("texts zur populare musik") or ((("texts zur popular music") or ("text zum popular music"))))*.