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)
depressed drugs » depressed areas (Expand search), repurposed drugs (Expand search)
drugs decrease » drugs increases (Expand search), drugs release (Expand search)
std processing » seed processing (Expand search), and processing (Expand search), end processing (Expand search)
decrease std » decrease sod (Expand search), decrease and (Expand search), decrease at (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not 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 during depressed drugs decrease ) OR ( decrease of decrease std processing ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed drugs decrease ) OR ( decrease of decrease std processing ))*.