Perhaps you should try some spelling variations:
"schriften zur burgerlichen recht" » "schriften zur burgerlichen rechts", "schriften zur burgerliches recht", "schriften zum burgerlichen recht", "schriften der burgerlichen recht", "schriften des burgerlichen recht"
"vorschriften zur burgerlichen recht" » "vorschriften zur burgerlichen rechts", "vorschriften zur burgerliches recht", "vorschriften zum burgerlichen recht", "vorschriften der burgerlichen recht", "vorschriften des burgerlichen recht", "vorschriften fur burgerlichen recht"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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