Perhaps you should try some spelling variations:
"by computation using linear program" » "by computations using linear program" (Expand search), "by computation in linear program" (Expand search), "by composition using linear program" (Expand search), "by computational using linear program" (Expand search), "of computation using linear program" (Expand search), "_ computation using linear program" (Expand search), "by computation using linear programmin" (Expand search), "by computation using linear programming" (Expand search)
"using codigo python python programming" » "using codigo pythons python programming" (Expand search), "using codigo piton python programming" (Expand search), "using codigo pitons python programming" (Expand search), "using indigo python python programming" (Expand search), "using coding python python programming" (Expand search), "using codium 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 linear program\") OR (\"using codigo python python programming\"))~".
• Removing quotes may allow a broader search: (( by computation using linear program ) OR ( using codigo python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("by computation using linear program") OR ("using codigo python python programming"))*.