Perhaps you should try some spelling variations:
"advanced computation in diffusion problem" » "advanced computations in diffusion problem" (Expand search), "advanced computational in diffusion problem" (Expand search), "advance computational in diffusion problem" (Expand search), "advanced computation in diffusion process" (Expand search), "advanced computation and diffusion problem" (Expand search), "advanced computation of diffusion problem" (Expand search), "advanced imputation in diffusion problem" (Expand search), "advanced computation on diffusion problem" (Expand search), "advanced computation _ diffusion problem" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python 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: (("advanced computation in diffusion problem") OR ("using python python python programming"))~.
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• Removing quotes may allow a broader search: (( advanced computation in diffusion problem ) OR ( using python python python programming ))*.