Perhaps you should try some spelling variations:
decrease diffusion » decreases diffusion (Expand search), sucrose diffusion (Expand search)
diffusion problems » diffusion problem (Expand search), diffusion process (Expand search)
code decrease » oxide decrease (Expand search), roads decrease (Expand search), to decrease (Expand search)
piton python » pitons python (Expand search), in python (Expand search), with python (Expand search)
python gate » python data (Expand search), python based (Expand search)
gate piton » gate python (Expand search), jane piton (Expand search), gates hilton (Expand search)
code code » code cdc (Expand search)

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

• Removing quotes may allow a broader search: (( code code decrease diffusion problems ) OR ( python gate piton python programming ))~.