Perhaps you should try some spelling variations:
"advance computational and linear programming" » "advanced computational and linear programming" (Expand search), "advancing computational and linear programming" (Expand search), "advanced computations and linear programming" (Expand search), "advance computational fluid linear programming" (Expand search), "advance computational and nonlinear 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)

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• Removing quotes may allow a broader search: (( advance computational and linear programming ) OR ( using codigo python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("advance computational and linear programming") OR ("using codigo python python programming"))*.