Perhaps you should try some spelling variations:
"advanced imputation in computer program" » "advanced computations in computer program" (Expand search), "advanced simulation in computer program" (Expand search), "advanced computational in computer program" (Expand search), "advanced mutation in computer program" (Expand search), "advanced imputation of computer program" (Expand search), "advanced implantation in computer program" (Expand search), "advanced imputation _ 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.

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