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)
cross decreased » causes decreased (Expand search), corn decreased (Expand search), loss decrease (Expand search)
decrease cross » decrease costs (Expand search), increase cross (Expand search), decrease sucrose (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( decrease cross decreased cooperation process ) OR ( decrease _ decrease toc decrease ))~.