Perhaps you should try some spelling variations:
diffraction state » diffraction study (Expand search), diffraction data (Expand search), diffraction at (Expand search)
disease processes » disease process (Expand search), disease progress (Expand search), these processes (Expand search)
decrease disease » decreases disease (Expand search), increase disease (Expand search), increased disease (Expand search)
rate decrease » rats decreases (Expand search), ratio decrease (Expand search), rate increase (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
state python » static python (Expand search), gate python (Expand search), state path (Expand search)
code rate » code rape (Expand search), code state (Expand search), code rac (Expand search)

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

• Removing quotes may allow a broader search: (( code rate decrease disease processes ) OR ( diffraction state python python programming ))~.