Perhaps you should try some spelling variations:
"based computations using computer program" » "based computation using computer program" (Expand search), "based computational using computer program" (Expand search), "based competition using computer program" (Expand search), "based populations using computer program" (Expand search), "based computations in computer program" (Expand search)
"using coding c python programming" » "using coping c python programming" (Expand search), "using coating c python programming" (Expand search), "using cooking c python programming" (Expand search), "using coding co python programming" (Expand search), "using coding _ python programming" (Expand search), "using coding h python programming" (Expand search), "using coding in python programming" (Expand search), "using coding of python programming" (Expand search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("based computations using computer program") OR ("using coding c python programming"))~.
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• Removing quotes may allow a broader search: (( based computations using computer program ) OR ( using coding c python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based computations using computer program") OR ("using coding c python programming"))*.