Perhaps you should try some spelling variations:
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), disease during (Expand search)
depressed can » depressed and (Expand search), depressed brain (Expand search), depressed manic (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
is producing » i producing (Expand search), s producing (Expand search), inos producing (Expand search)
can decrease » can increase (Expand search), to decrease (Expand search), _ decrease (Expand search)
decrease is » decrease its (Expand search), decrease in (Expand search), decrease il (Expand search)

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: (( decrease AND decrease is producing ) OR ( decrease during depressed can decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and decrease is producing ) OR ( decrease during depressed can decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and decrease is producing ) OR ( decrease during depressed can decrease ))*.