Perhaps you should try some spelling variations:
decreases cooperation » decrease cooperation (Expand search), decreases proliferation (Expand search), decreases postoperative (Expand search)
cooperation projects » cooperation project (Expand search), cooperative projects (Expand search), conservation projects (Expand search)
logging decreases » loading decreased (Expand search), ageing decreases (Expand search), leaching decreases (Expand search)
decrease logging » decrease lodging (Expand search), decrease flooding (Expand search), decrease owing (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to 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 logging decreases cooperation projects ) OR ( decrease _ decrease of decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease logging decreases cooperation projects ) OR ( decrease _ decrease of decrease ))*.