Perhaps you should try some spelling variations:
"using computational java convex programming" » "and computational java convex programming" (Expand search), "using computacional java convex programming" (Expand search), "using computational data convex programming" (Expand search), "using computational and convex programming" (Expand search), "using computational java cone programming" (Expand search), "using computational java computer 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: "((\"using computational java convex programming\") OR (\"using codigo python python programming\"))~".
• Removing quotes may allow a broader search: (( using computational java convex programming ) OR ( using codigo python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computational java convex programming") OR ("using codigo python python programming"))*.