Perhaps you should try some spelling variations:
decreased cooperation » decrease cooperation (Expand search), decreased proliferation (Expand search), decreased oxidation (Expand search)
cooperation projects » cooperation project (Expand search), cooperative projects (Expand search), conservation projects (Expand search)
in decreased » is decreased (Expand search), in deceased (Expand search), and decreased (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 at » decrease akt (Expand search), decrease and (Expand search), decrease of (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 in decreased cooperation projects ) OR ( decrease at decrease pro decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decreased cooperation projects ) OR ( decrease at decrease pro decrease ))*.