Perhaps you should try some spelling variations:
decreased cooperation » decrease cooperation (Expand search), decreased proliferation (Expand search), decreased oxidation (Expand search)
cooperation process » cooperative process (Expand search), operation process (Expand search), cooperation projects (Expand search)
on decreased » in decreased (Expand search), of decreased (Expand search), on deceased (Expand search)
decrease pro » decrease or (Expand search), decrease food (Expand search), decrease treg (Expand search)
pro decrease » to decrease (Expand search), or decrease (Expand search), price decrease (Expand search)
decrease on » decrease in (Expand search), decrease of (Expand search), decrease or (Expand search)
decrease at » decrease akt (Expand search), decrease and (Expand search), decrease in (Expand search)
at decrease » rate decrease (Expand search), that decrease (Expand search), and 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 on decreased cooperation process ) OR ( decrease at decrease pro decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease on decreased cooperation process ) OR ( decrease at decrease pro decrease ))*.