Perhaps you should try some spelling variations:
decrease topical » decrease total (Expand search), decrease physical (Expand search), decreases local (Expand search)
topical effect » optical effects (Expand search)
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 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)

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 AND decrease fear decrease ) OR ( decrease AND decrease topical effect ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease AND decrease fear decrease ) OR ( decrease and decrease topical effect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease AND decrease fear decrease ) OR ( decrease and decrease topical effect ))*.