Perhaps you should try some spelling variations:
"advanced computation using diffusion problem" » "advanced computations using diffusion problem" (Expand search), "advanced computational using diffusion problem" (Expand search), "advance computational using diffusion problem" (Expand search), "advanced computation in diffusion problem" (Expand search), "advanced composition using diffusion problem" (Expand search), "advanced computation using diffusion process" (Expand search)
"using modeling in python programming" » "using model in python programming" (Expand search), "using modern in python programming" (Expand search), "using models in python programming" (Expand search), "using modeling _ 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: "((\"advanced computation using diffusion problem\") OR (\"using modeling in python programming\"))~".
• Removing quotes may allow a broader search: (( advanced computation using diffusion problem ) OR ( using modeling in python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced computation using diffusion problem") OR ("using modeling in python programming"))*.