Perhaps you should try some spelling variations:
"mail's depressive disorders" » "mail's depressive disorder", "mail's impressive disorders", "mild depressive disorders", "major depressive disorders"
"manisch depressive disorders" » "manisch depressive disorder", "manic depressive disorders"
"build impressive disorder" » "build depressive disorder", "build aggressive disorders", "build depression disorder", "build immersive disorder", "build massive disorder"

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 disorders") OR ("manisch depressive disorders"))) OR ("build impressive disorder"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"mail's depressive disorders\") OR (\"manisch depressive disorders\"))) or (\"build impressive disorder\"))*".
• Removing quotes may allow a broader search: (((( mail's depressive disorders ) OR ( manisch depressive disorders ))) or ( build impressive disorder ))*.