Perhaps you should try some spelling variations:
"by computational _ diffusion program" » "by computational _ diffusion problem" (Expand search), "by computational _ diffusion problems" (Expand search), "by computational _ diffusion process" (Expand search), "_ computational _ diffusion program" (Expand search), "and computational _ diffusion program" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking python python programming" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"by computational _ diffusion program\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( by computational _ diffusion program ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("by computational _ diffusion program") OR ("using coding python python programming"))*.