Perhaps you should try some spelling variations:
diffusion imaging » perfusion imaging (Expand search), diffraction imaging (Expand search), diffusion bonding (Expand search)
coder diffusion » copper diffusion (Expand search), order diffusion (Expand search), node diffusion (Expand search)
on programming » in programming (Expand search), cone programming (Expand search), and programming (Expand search)
using coating » using coatings (Expand search), using rotating (Expand search), using cutting (Expand search)
imaging on » imaging of (Expand search), imaging and (Expand search), imaging _ (Expand search)

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

• Removing quotes may allow a broader search: (( coder diffusion imaging on programming ) OR ( using coating _ python programming ))~.