Perhaps you should try some spelling variations:
"based imputation in integer programming" » "based imputation in linear programming" (Expand search), "based computation in integer programming" (Expand search), "based reputation in integer programming" (Expand search), "based mutation in integer programming" (Expand search), "based imputation of integer programming" (Expand search), "based implantation in integer programming" (Expand search), "based imputation an integer programming" (Expand search), "based imputation and integer programming" (Expand search), "based imputation in inter programming" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python python 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: (("based imputation in integer programming") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based imputation in integer programming\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( based imputation in integer programming ) OR ( using python python python programming ))*.