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