Perhaps you should try some spelling variations:
decrease fear » decreased fear (Expand search), decrease fetal (Expand search), decreased heart (Expand search)
fear decrease » break decrease (Expand search), merr decreases (Expand search), can decrease (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease akt » decrease at (Expand search), decrease and (Expand search), decrease after (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
akt effect » salt effect (Expand search), mart effect (Expand search), out effect (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 fear decrease of decrease ) OR ( decrease rate decrease akt effect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease fear decrease of decrease ) OR ( decrease rate decrease akt effect ))*.