Perhaps you should try some spelling variations:
"using imputation using computer programming" » "using imputation using computer program" (Expand search), "using imputation using computer programs" (Expand search), "using mutation using computer programming" (Expand search), "testing imputation using computer programming" (Expand search), "using computational using computer programming" (Expand search), "using computation using computer programming" (Expand search), "using computations using computer programming" (Expand search), "using imputation in computer programming" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("using imputation using computer programming") OR ("using code from python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using imputation using computer programming\") OR (\"using code from python programming\"))".
• Removing quotes may allow a broader search: (( using imputation using computer programming ) OR ( using code from python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using imputation using computer programming") OR ("using code from python programming"))*.