Perhaps you should try some spelling variations:
decreased fear » decreased heart (Expand search), decreased mean (Expand search), decreased after (Expand search)
decrease akt » decrease at (Expand search), decrease and (Expand search), decrease after (Expand search)
akt decrease » and decrease (Expand search), not decrease (Expand search), any decrease (Expand search)
or decreased » or decrease (Expand search), of decreased (Expand search), or decreases (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
decrease or » decrease pro (Expand search), decrease toc (Expand search), decrease in (Expand search)
fear based » agar based (Expand search), feature based (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 akt decrease of decrease ) OR ( decrease OR decreased fear based ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease akt decrease of decrease ) OR ( decrease or decreased fear based ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease akt decrease of decrease ) OR ( decrease or decreased fear based ))*.