Perhaps you should try some spelling variations:
work cooperative » _ cooperative (Expand search), and cooperative (Expand search), work collective (Expand search)
decrease strain » increase strain (Expand search), decreases pain (Expand search), decreased brain (Expand search)
strain decrease » strains increases (Expand search), stress decreases (Expand search)
with decreased » with increased (Expand search)
decreased work » decrease work (Expand search), decreased rorc (Expand search), decreased force (Expand search)
decrease with » decreases with (Expand search), increase with (Expand search), decrease in (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 strain decrease OR decrease ) OR ( decrease with decreased work cooperative ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease strain decrease OR decrease ) OR ( decrease with decreased work cooperative ))*.