Perhaps you should try some spelling variations:
"modeling computation using computational code" » "modeling computational using computational code" (Expand search), "modeling simulation using computational code" (Expand search), "modeling notation using computational code" (Expand search), "modeling computation and computational code" (Expand search), "modeling computation using computational model" (Expand search), "modeling computation using computational cost" (Expand search), "modeling computation using computational models" (Expand search), "modeling computations using computational code" (Expand search), "modeling computation in computational code" (Expand search), "modeling composition using computational code" (Expand search)
"using using python python programming" » "using using pythons python programming" (Expand search), "using using piton python programming" (Expand search), "using using pitons python programming" (Expand search), "using usando python python programming" (Expand search), "using in python python programming" (Expand search), "using fusing python python programming" (Expand search), "housing using python python programming" (Expand search), "nursing using 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: (("modeling computation using computational code") OR ("using using python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modeling computation using computational code\") OR (\"using using python python programming\"))*".
• Removing quotes may allow a broader search: (( modeling computation using computational code ) OR ( using using python python programming ))*.