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 models from python programming" » "ising models from python programming" (Expand search), "using model from python programming" (Expand search), "nursing models from python programming" (Expand search), "using models from pathogen programming" (Expand search), "using models from anthony programming" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"by computation using computer program\") OR (\"using models from python programming\"))~".
• Removing quotes may allow a broader search: (( by computation using computer program ) OR ( using models from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("by computation using computer program") OR ("using models from python programming"))*.