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 peer » decrease fear (Expand search), decrease need (Expand search), decrease after (Expand search)
decrease can » decrease and (Expand search), decrease at (Expand search), decrease on (Expand search)
can decrease » and decrease (Expand search), can increase (Expand search), to decrease (Expand search)
peer effects » their effects (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (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 can decrease in decrease ) OR ( decrease adhesion decrease peer effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease can decrease in decrease ) OR ( decrease adhesion decrease peer effects ))*.