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 field » depressed aged (Expand search)
decrease that » decrease the (Expand search), decrease at (Expand search), decrees that (Expand search)
that decrease » that increase (Expand search), that increases (Expand search), not decrease (Expand search)
field object » field objects (Expand search), fields objects (Expand search), field subject (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)
or decrease » of decrease (Expand search), not decrease (Expand search), to 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 that decrease OR decrease ) OR ( decrease during depressed field object ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease that decrease or decrease ) OR ( decrease during depressed field object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease that decrease or decrease ) OR ( decrease during depressed field object ))*.