Perhaps you should try some spelling variations:
"modeling computation using cd program" » "modeling computational using cd program" (Expand search), "modeling simulation using cd program" (Expand search), "modeling notation using cd program" (Expand search), "modeling computations using cd program" (Expand search), "modeling computation in cd program" (Expand search), "modeling composition using cd program" (Expand search), "modeling computation using ced program" (Expand search), "modeling computation using d program" (Expand search), "modeling computation using and program" (Expand search), "modeling computation using cfd program" (Expand search), "modeling computation using cad program" (Expand search), "modeling computation using cd4 program" (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modeling computation using cd program\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( modeling computation using cd program ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("modeling computation using cd program") OR ("using python python python programming"))*.