Perhaps you should try some spelling variations:
"using computation in model problems" » "using computational in model problems" (Expand search), "using imputation in model problems" (Expand search), "using compilation in model problems" (Expand search), "using computation and model problems" (Expand search), "using computation of model problems" (Expand search), "using computation in moral problems" (Expand search), "using computation in del problema" (Expand search), "using computation in oral problems" (Expand search), "using computation in models problems" (Expand search), "using computation in modern problems" (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computation in model problems\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( using computation in model problems ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computation in model problems") OR ("using coding python python programming"))*.