Perhaps you should try some spelling variations:
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
drugs decreased » drugs decrease (Expand search), drugs increases (Expand search), cross decreased (Expand search)
decreased heart » decreased health (Expand search), decreased fear (Expand search), decreased left (Expand search)
decrease drugs » disease drugs (Expand search), decrease treg (Expand search), release drugs (Expand search)
heart objects » smart objects (Expand search), art objects (Expand search), earth objects (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 decrease AND decrease ) OR ( decrease drugs decreased heart objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during decrease AND decrease ) OR ( decrease drugs decreased heart objects ))*.