Perhaps you should try some spelling variations:
"coding perturbations and objective programming" » "including perturbations and objective programming" (Expand search), "coupling perturbation and objective programming" (Expand search), "noise perturbations and objective programming" (Expand search), "coding perturbation and objective programming" (Expand search), "coding perturbations in objective programming" (Expand search), "coding perturbations on objective programming" (Expand search), "coding perturbations and subjective programming" (Expand search), "coding perturbations and object programming" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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: (("coding perturbations and objective programming") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coding perturbations and objective programming\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( coding perturbations and objective programming ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coding perturbations and objective programming") OR ("using coding python python programming"))*.