Perhaps you should try some spelling variations:
"using computation using diffusion program" » "using computational using diffusion program" (Expand search), "using imputation using diffusion program" (Expand search), "using compilation using diffusion program" (Expand search), "using computations using diffusion program" (Expand search), "using computation in diffusion program" (Expand search), "using composition using diffusion program" (Expand search), "using computation using diffusion problem" (Expand search), "using computation using diffusion problems" (Expand search), "using computation using diffusion process" (Expand search)
"using coping python python programming" » "using using python python programming" (Expand search), "using codigo python python programming" (Expand search), "using coping pythons python programming" (Expand search), "using coping piton python programming" (Expand search), "using coping pitons python programming" (Expand search), "using coding python python programming" (Expand search), "using coupling python python programming" (Expand search), "nursing coping python python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("using computation using diffusion program") OR ("using coping python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computation using diffusion program\") OR (\"using coping python python programming\"))".
• Removing quotes may allow a broader search: (( using computation using diffusion program ) OR ( using coping python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computation using diffusion program") OR ("using coping python python programming"))*.