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

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: ("psychiatrists" OR ("psychiatrisches" OR "psychiatrische")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(\"psychiatrists\" or (\"psychiatrisches\" OR \"psychiatrische\"))".
• Removing quotes may allow a broader search: ( psychiatrists or ( psychiatrisches OR psychiatrische )).
• Adding a wildcard symbol may retrieve word variants: ("psychiatrists" or ("psychiatrisches" OR "psychiatrische"))*.