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)
decrease cells » decrease cell (Expand search), decreases cell (Expand search), decrease costs (Expand search)
cells decrease » cells decreases (Expand search), cells increase (Expand search), cells increases (Expand search)
decrease sers » decreases serum (Expand search), decreased serum (Expand search), decreased self (Expand search)
sers based » series based (Expand search), sensors 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 _ decrease during decrease ) OR ( decrease cells decrease sers based ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease _ decrease during decrease ) OR ( decrease cells decrease sers based ))*.