Perhaps you should try some spelling variations:
"modeling computation in computational program" » "modeling computational in computational program" (Expand search), "modeling simulation in computational program" (Expand search), "modeling notation in computational program" (Expand search), "modeling computation and computational program" (Expand search), "modeling computation _ computational program" (Expand search), "modeling computation of computational program" (Expand search), "modeling imputation in computational program" (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 in computational program") OR ("using using python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modeling computation in computational program\") OR (\"using using python python programming\"))".
• Removing quotes may allow a broader search: (( modeling computation in computational program ) OR ( using using python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("modeling computation in computational program") OR ("using using python python programming"))*.