Perhaps you should try some spelling variations:
adhesion decrease » adhesin decreases (Expand search), lesions decrease (Expand search), abortion decrease (Expand search)
decrease adhesion » increases adhesion (Expand search), decrease asian (Expand search), decreases aggression (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)
fear effects » year effects (Expand search), fear affects (Expand search), pear effects (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (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 to decrease AND decrease ) OR ( decrease adhesion decrease fear effects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease to decrease and decrease ) OR ( decrease adhesion decrease fear effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease to decrease and decrease ) OR ( decrease adhesion decrease fear effects ))*.