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

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 des burgerlichen recht\") OR (\"schriften der burgerlichen recht\"))*".
• Removing quotes may allow a broader search: (( schriften des burgerlichen recht ) OR ( schriften der burgerlichen recht ))*.