Perhaps you should try some spelling variations:
"zur schriftenreihe" » "cover schriftenreihe", "und schriftenreihen", "eine schriftenreihe"
"1.1 schriftenreihe" » "und schriftenreihen", "eine schriftenreihe", "cover schriftenreihe"
"der schriftenreihe" » "und schriftenreihen", "der schriftsprache", "istron 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: (((("zur schriftenreihe") OR ("1.1 schriftenreihe"))) OR ("der schriftenreihe")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"zur schriftenreihe\") OR (\"1.1 schriftenreihe\"))) or (\"der schriftenreihe\"))".
• Removing quotes may allow a broader search: (((( zur schriftenreihe ) OR ( 1.1 schriftenreihe ))) or ( der schriftenreihe )).
• Adding a wildcard symbol may retrieve word variants: (((("zur schriftenreihe") OR ("1.1 schriftenreihe"))) or ("der schriftenreihe"))*.