Perhaps you should try some spelling variations:
decrease buffering » decrease suffering (Expand search), increased buffering (Expand search)
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
buffering effect » lowering effect (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (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 OR decrease ) OR ( decrease to decrease buffering effect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed OR decrease ) OR ( decrease to decrease buffering effect ))*.