Perhaps you should try some spelling variations:
decreases cooperative » decreases postoperative (Expand search), decrease cooperation (Expand search), disease cooperative (Expand search)
cooperative projects » cooperative process (Expand search), cooperation project (Expand search), cooperative effects (Expand search)
walking decreases » training decreases (Expand search), leaching decreases (Expand search), taping decrease (Expand search)
decrease walking » increase walking (Expand search), decrease during (Expand search), decrease lodging (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 walking decreases cooperative projects ) OR ( decrease _ decrease of decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease walking decreases cooperative projects ) OR ( decrease _ decrease of decrease ))*.