Perhaps you should try some spelling variations:
"mail's depressive disorder" » "mail's impressive disorder", "mild depressive disorder", "manisch depressive disorder"
"build depressive disorders" » "build impressive disorders", "mild depressive disorders", "und depressive disorders"

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: (("mail's depressive disorder") OR ("build depressive disorders")).
• Removing quotes may allow a broader search: (( mail's depressive disorder ) or ( build depressive disorders )).
• Adding a wildcard symbol may retrieve word variants: (("mail's depressive disorder") or ("build depressive disorders"))*.