Perhaps you should try some spelling variations:
"modeling computation using tf program" » "modeling computational using tf program" (Expand search), "modeling simulation using tf program" (Expand search), "modeling notation using tf program" (Expand search), "modeling computations using tf program" (Expand search), "modeling computation in tf program" (Expand search), "modeling composition using tf program" (Expand search), "modeling computation using of program" (Expand search), "modeling computation using mef program" (Expand search), "modeling computation using ai program" (Expand search), "modeling computation using ti program" (Expand search), "modeling computation using t program" (Expand search), "modeling computation using td program" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python 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 tf program") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modeling computation using tf program\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( modeling computation using tf program ) OR ( using python python python programming ))*.