Perhaps you should try some spelling variations:
"treating aggressive disorders" » "treating depressive disorders", "treating recessive disorders", "treating aggressive diseases", "treatise aggressive disorders"
"creating aggressive disorders" » "creating depressive disorders", "creating recessive disorders", "creating aggressive diseases", "creating expressive disorders", "detecting aggressive disorders", "mediating 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 ((("treating aggressive disorders") OR ("creating aggressive disorders")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mail's depressive disorder\") or (((\"treating aggressive disorders\") OR (\"creating aggressive disorders\"))))".
• Removing quotes may allow a broader search: (( mail's depressive disorder ) or ((( treating aggressive disorders ) OR ( creating aggressive disorders )))).
• Adding a wildcard symbol may retrieve word variants: (("mail's depressive disorder") or ((("treating aggressive disorders") OR ("creating aggressive disorders"))))*.