Perhaps you should try some spelling variations:
"using computational models computer program" » "using computational model computer program" (Expand search), "using computational modeling computer program" (Expand search), "using computational modelling computer program" (Expand search), "and computational models computer program" (Expand search), "using computational modelo computer program" (Expand search)
"using coding and python programming" » "using coping and python programming" (Expand search), "using coating and python programming" (Expand search), "using cooking and python programming" (Expand search), "using coding rna python programming" (Expand search), "using coding in python programming" (Expand search), "using coding on python programming" (Expand search), "using coding api python programming" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational models computer program\") OR (\"using coding and python programming\"))~".
• Removing quotes may allow a broader search: (( using computational models computer program ) OR ( using coding and python programming ))~.
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