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 their » depressed the (Expand search), depressed mother (Expand search), depresses the (Expand search)
air processing » dairy processing (Expand search), stir processing (Expand search), bait processing (Expand search)
their decrease » the decrease (Expand search), their disease (Expand search), the decreased (Expand search)
decrease via » decrease in (Expand search), decrease hiv (Expand search), decrease il (Expand search)
via decrease » via decreasing (Expand search), will decrease (Expand search), urea decrease (Expand search)
decrease air » decrease in (Expand search), decrease and (Expand search), decrease at (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 via decrease air processing ) OR ( decrease during depressed their decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease via decrease air processing ) OR ( decrease during depressed their decrease ))*.