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 costs » decreasing costs (Expand search), decreases post (Expand search), disease costs (Expand search)
costs decrease » loss decrease (Expand search), not decrease (Expand search), cells decrease (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)

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

• Removing quotes may allow a broader search: (( decrease costs decrease ration processing ) OR ( decrease rate decrease during depressed ))~.