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)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
their decrease » the decrease (Expand search), their disease (Expand search), the decreased (Expand search)
or processing » or reprocessing (Expand search), poir processing (Expand search), air processing (Expand search)
depressed or » depressed nk (Expand search), depressed 26 (Expand search), depressed to (Expand search)
decrease akt » decrease at (Expand search), decrease and (Expand search), decrease after (Expand search)
akt decrease » and decrease (Expand search), not decrease (Expand search), any decrease (Expand search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease during depressed OR processing ) OR ( decrease akt decrease their decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease during depressed or processing ) OR ( decrease akt decrease their decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed or processing ) OR ( decrease akt decrease their decrease ))*.