Perhaps you should try some spelling variations:
"by computations using integer programing" » "by computation using integer programing" (Expand search), "by populations using integer programing" (Expand search), "by computations in integer programing" (Expand search), "by computations using integer programming" (Expand search), "by computations using internet programming" (Expand search), "by computations using linear programing" (Expand search), "by computational using integer programing" (Expand search), "of computations using integer programing" (Expand search), "by computacional using integer programing" (Expand search), "by computations using inter programing" (Expand search), "by computations using internet programing" (Expand search), "by computations using integral programing" (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: (("by computations using integer programing") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"by computations using integer programing\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( by computations using integer programing ) OR ( using python python python programming ))*.