Perhaps you should try some spelling variations:
"by computation using cad program" » "by computations using cad program" (Expand search), "by computation in cad program" (Expand search), "by composition using cad program" (Expand search), "by computational using cad program" (Expand search), "of computation using cad program" (Expand search), "_ computation using cad program" (Expand search), "by computation using cad programa" (Expand search), "by computation using cd program" (Expand search), "by computation using ced program" (Expand search), "by computation using cfd program" (Expand search), "by computation using c 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: "((\"by computation using cad program\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( by computation using cad program ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("by computation using cad program") OR ("using python python python programming"))*.