Perhaps you should try some spelling variations:
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"using imputation from integer programming" » "using imputation from linear programming" (Expand search), "using mutation from integer programming" (Expand search), "testing imputation from integer programming" (Expand search), "using indentation from integer programming" (Expand search), "using amputation from integer programming" (Expand search), "using computation from integer programming" (Expand search), "using imputation from inter programming" (Expand search), "using imputation from integral programming" (Expand search), "using imputation from internet 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 computational code coding program") OR ("using imputation from integer programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational code coding program\") OR (\"using imputation from integer programming\"))*".
• Removing quotes may allow a broader search: (( using computational code coding program ) OR ( using imputation from integer programming ))*.