Perhaps you should try some spelling variations:
decrease diffusion » decreases diffusion (Expand search), sucrose diffusion (Expand search)
diffusion problem » diffusion process (Expand search)
python coding » action coding (Expand search), python code (Expand search)
coding python » codigo python (Expand search), codigos python (Expand search), using python (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
may decrease » may increase (Expand search), can decrease (Expand search), to decrease (Expand search)
code may » code an (Expand search), code by (Expand search), code at (Expand search)

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

• Removing quotes may allow a broader search: (( code may decrease diffusion problem ) OR ( python coding python python programming ))~.