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), increased during (Expand search)
tree processing » three processing (Expand search), green processing (Expand search), puree processing (Expand search)
depressed tree » depressed the (Expand search), depressed area (Expand search), depressed areas (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.

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