Perhaps you should try some spelling variations:
"by computation and linear programing" » "by computation and linear programming" (Expand search), "by computation and linear programmin" (Expand search), "by computation and linear program" (Expand search), "by computational and linear programing" (Expand search), "by computation of linear programing" (Expand search), "of computation and linear programing" (Expand search), "_ computation and linear programing" (Expand search), "by computation and nonlinear programing" (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 and linear programing\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( by computation and linear programing ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("by computation and linear programing") OR ("using python python python programming"))*.