Perhaps you should try some spelling variations:
"cover schriftenreihe" » "eine schriftenreihe", "lernen schriftenreihe", "1.1 schriftenreihe"
"der schriftenreihe" » "und schriftenreihen", "der schriftsprache", "istron schriftenreihe"
"zur schriftenreihe" » "1.1 schriftenreihe", "und schriftenreihen", "eine schriftenreihe"

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: (((("cover schriftenreihe") OR ("der schriftenreihe"))) OR ("zur schriftenreihe")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"cover schriftenreihe\") OR (\"der schriftenreihe\"))) or (\"zur schriftenreihe\"))".
• Removing quotes may allow a broader search: (((( cover schriftenreihe ) OR ( der schriftenreihe ))) or ( zur schriftenreihe )).
• Adding a wildcard symbol may retrieve word variants: (((("cover schriftenreihe") OR ("der schriftenreihe"))) or ("zur schriftenreihe"))*.