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 will » depressed skull (Expand search), depressed i (Expand search)
four protocols » four protocol (Expand search), aloud protocols (Expand search), pcr protocols (Expand search)
decrease four » decrease food (Expand search), decrease or (Expand search), decrease fear (Expand search)
decrease at » decrease akt (Expand search), decrease and (Expand search), decrease in (Expand search)
at decrease » rate decrease (Expand search), that decrease (Expand search), and 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 will decrease ) OR ( decrease at decrease four protocols ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed will decrease ) OR ( decrease at decrease four protocols ))*.