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 toc » depressed to (Expand search), depressed the (Expand search), depressed towns (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (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)
decrease cr » decrease or (Expand search), decrease pro (Expand search), decrease in (Expand search)
cr based » pcr based (Expand search), qpcr based (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 toc decrease ) OR ( decrease at decrease cr based ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed toc decrease ) OR ( decrease at decrease cr based ))*.