Perhaps you should try some spelling variations:
"using computation using computer program" » "using computational using computer program" (Expand search), "using imputation using computer program" (Expand search), "using compilation using computer program" (Expand search), "using computations using computer program" (Expand search), "using computation in computer program" (Expand search), "using composition using computer program" (Expand search)
"using modeling from python programming" » "using model from python programming" (Expand search), "using modern from python programming" (Expand search), "using models from python programming" (Expand search), "using modeling from pathogen programming" (Expand search), "using modeling from anthony 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: (("using computation using computer program") OR ("using modeling from python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computation using computer program\") OR (\"using modeling from python programming\"))*".
• Removing quotes may allow a broader search: (( using computation using computer program ) OR ( using modeling from python programming ))*.