Perhaps you should try some spelling variations:
decrease cooperation » defense cooperation (Expand search), decrease proliferation (Expand search), decrease migration (Expand search)
cooperation effect » cooperation effects (Expand search), cooperative effect (Expand search), cooperative effects (Expand search)
decrease statins » disease statins (Expand search)
statins decrease » statins increase (Expand search), skins decrease (Expand search), strain decrease (Expand search)
decrease il » decreased il (Expand search), decrease in (Expand search), decrease hiv (Expand search)
il decrease » l decrease (Expand search), will decrease (Expand search), oil decreases (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( decrease statins decrease NOT decrease ) OR ( decrease il decrease cooperation effect ))~.