Perhaps you should try some spelling variations:
"advanced computation using diffusion problems" » "advanced computations using diffusion problems" (Expand search), "advanced computational using diffusion problems" (Expand search), "advance computational using diffusion problems" (Expand search), "advanced computation using diffusion problem" (Expand search), "advanced computation using diffusion process" (Expand search), "advanced computation in diffusion problems" (Expand search), "advanced composition using diffusion problems" (Expand search)
"using tool python python programming" » "using tool pythons python programming" (Expand search), "using tool piton python programming" (Expand search), "using tool pitons python programming" (Expand search), "using tools python python programming" (Expand search), "using total python python programming" (Expand search), "using tonal 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: "((\"advanced computation using diffusion problems\") OR (\"using tool python python programming\"))~".
• Removing quotes may allow a broader search: (( advanced computation using diffusion problems ) OR ( using tool python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("advanced computation using diffusion problems") OR ("using tool python python programming"))*.