Perhaps you should try some spelling variations:
"zustande halluzinationen" » "und halluzinationen", "visuelle halluzinationen"
"echten halluzinationen" » "der halluzinationen", "mit halluzinationen", "von halluzinationen"
"echte halluzinationen" » "mit halluzinationen", "und halluzinationen", "9 halluzinationen"
"sind halluzinationen" » "und halluzinationen", "und halluzination", "9 halluzinationen"

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: (((((("zustande halluzinationen") OR ("sind halluzinationen"))) OR ((("echte halluzinationen") OR ("echten halluzinationen"))))) OR ("auditory hallucinations")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"zustande halluzinationen\") OR (\"sind halluzinationen\"))) or (((\"echte halluzinationen\") or (\"echten halluzinationen\"))))) or (\"auditory hallucinations\"))".
• Removing quotes may allow a broader search: (((((( zustande halluzinationen ) OR ( sind halluzinationen ))) or ((( echte halluzinationen ) or ( echten halluzinationen ))))) or ( auditory hallucinations )).
• Adding a wildcard symbol may retrieve word variants: (((((("zustande halluzinationen") OR ("sind halluzinationen"))) or ((("echte halluzinationen") or ("echten halluzinationen"))))) or ("auditory hallucinations"))*.