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