Perhaps you should try some spelling variations:
"treatise aggressive disorders" » "treatise depressive disorders", "treatise recessive disorders", "treatise aggressive diseases", "treating aggressive disorders", "hepatis aggressive disorders", "assertive aggressive disorders"
"rates aggressive disorders" » "rates depressive disorders", "rates recessive disorders", "rates aggressive diseases", "related aggressive disorders", "das aggressive disorders", "based aggressive disorders"
"mail's depressive disorder" » "mail's impressive disorder", "mild depressive disorder", "manisch depressive disorder"

Try widening your search to All Fields.

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 ((("treatise aggressive disorders") OR ("rates aggressive disorders")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mail's depressive disorder\") or (((\"treatise aggressive disorders\") OR (\"rates aggressive disorders\"))))".
• Removing quotes may allow a broader search: (( mail's depressive disorder ) or ((( treatise aggressive disorders ) OR ( rates aggressive disorders )))).
• Adding a wildcard symbol may retrieve word variants: (("mail's depressive disorder") or ((("treatise aggressive disorders") OR ("rates aggressive disorders"))))*.