Perhaps you should try some spelling variations:
"testing computation using computer program" » "testing imputation using computer program" (Expand search), "testing population using computer program" (Expand search), "testing mutation using computer program" (Expand search), "testing computations using computer program" (Expand search), "testing computation in computer program" (Expand search), "testing composition using computer program" (Expand search)
"using code from python programming" » "using code from pathogen programming" (Expand search), "using code from anthony programming" (Expand search), "using cone from python programming" (Expand search), "using co from python programming" (Expand search), "using co2 from python programming" (Expand search), "using code form python 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: "((\"testing computation using computer program\") OR (\"using code from python programming\"))~".
• Removing quotes may allow a broader search: (( testing computation using computer program ) OR ( using code from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("testing computation using computer program") OR ("using code from python programming"))*.