Perhaps you should try some spelling variations:
der gartner » der partner, oder partner, der garten
prevost de » prevost des, prevot des, prevost _
ernst der » ernst fehr, ernst e, ernst dieter
de gand » de gandt, de grand, de grande

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: (( ernst der gartner ) OR ( prevost de gand )).
• Adding a wildcard symbol may retrieve word variants: (( ernst der gartner ) or ( prevost de gand ))*.