Perhaps you should try some spelling variations:
ration processing » radiation processing (Expand search), emotion processing (Expand search), grain processing (Expand search)
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
decrease ration » decreased ratio (Expand search), decrease migration (Expand search), decrease predation (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
depressed can » depressed and (Expand search), depressed brain (Expand search), depressed manic (Expand search)
can decrease » can increase (Expand search), and decrease (Expand search), to decrease (Expand search)

You may be able to get more results by adjusting your search query.

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