Perhaps you should try some spelling variations:
"using computational python null objects" » "using computacional python null objects" (Expand search), "using computacional vpython null objects" (Expand search), "using computacionais python null objects" (Expand search), "and computational python null objects" (Expand search), "using computational python null object" (Expand search), "using computational python null subjects" (Expand search), "using computational python null subject" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("using computational python null objects") OR ("using codigo python python programming"))~.
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• Removing quotes may allow a broader search: (( using computational python null objects ) OR ( using codigo python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computational python null objects") OR ("using codigo python python programming"))*.