Perhaps you should try some spelling variations:
cooperation processing » conservation processing (Expand search), cooperation process (Expand search), cooperation professional (Expand search)
decreased cooperation » decrease cooperation (Expand search), decreased proliferation (Expand search), decreased oxidation (Expand search)
decrease that » decrease the (Expand search), decrease at (Expand search), decrees that (Expand search)
that decrease » that increase (Expand search), that increases (Expand search), not decrease (Expand search)
in decreased » is decreased (Expand search), in deceased (Expand search), and decreased (Expand search)
decrease hiv » decrease their (Expand search), decreased high (Expand search), decrease with (Expand search)
hiv decrease » via decrease (Expand search), hiv increase (Expand search), will decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease in decreased cooperation processing ) OR ( decrease that decrease hiv decrease ))~.