Perhaps you should try some spelling variations:
"psychiatrische" » "psychiatric", "psychiatrists"
"psychiatrisches" » "psychiatrics", "psychiatristss", "psychiatrischen", "psychiatrischer", "psychiatrisch"
"psychiatrie" » "psychiatric", "psychiatry"

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: (("psychiatrische" OR "psychiatrie") OR "psychiatrisches").
• Removing quotes may allow a broader search: (( psychiatrische or psychiatrie ) or psychiatrisches ).
• Adding a wildcard symbol may retrieve word variants: (("psychiatrische" or "psychiatrie") or "psychiatrisches")*.