Perhaps you should try some spelling variations:
decrease diffusion » decreases diffusion (Expand search), sucrose diffusion (Expand search)
diffusion process » diffusion processes (Expand search)
decrease burden » disease burden (Expand search), decrease further (Expand search)
burden decrease » burden disease (Expand search), urea decrease (Expand search), burgers decreases (Expand search)
python codigo » python coding (Expand search), python code (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)

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

• Removing quotes may allow a broader search: (( decrease burden decrease diffusion process ) OR ( python codigo python python programming ))~.