Perhaps you should try some spelling variations:
decrease during » increase during (Expand search), increases during (Expand search), disease during (Expand search)
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
fear protocols » four protocols (Expand search), repair protocols (Expand search), ai protocols (Expand search)
decrease fear » decreased fear (Expand search), decrease fetal (Expand search), decreased heart (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
decrease il » decreased il (Expand search), decrease in (Expand search), decrease hiv (Expand search)
il decrease » l decrease (Expand search), will decrease (Expand search), oil decreases (Expand search)

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease during decrease il decrease ) OR ( decrease AND decrease fear protocols ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease during decrease il decrease ) OR ( decrease and decrease fear protocols ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during decrease il decrease ) OR ( decrease and decrease fear protocols ))*.