Perhaps you should try some spelling variations:
"by computational using integer programming" » "by computation using integer programming" (Expand search), "by computations using integer programming" (Expand search), "by computacional usinas integer programming" (Expand search), "by computational using linear programming" (Expand search), "_ computational using integer programming" (Expand search), "and computational using integer programming" (Expand search), "by computational using inter programming" (Expand search), "by computational using internet programming" (Expand search), "by computational using integral programming" (Expand search)
"using using python python programming" » "using using pythons python programming" (Expand search), "using using piton python programming" (Expand search), "using using pitons python programming" (Expand search), "using usando python python programming" (Expand search), "using in python python programming" (Expand search), "using fusing python python programming" (Expand search), "housing using python python programming" (Expand search), "nursing using 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 computational using integer programming") OR ("using using python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"by computational using integer programming\") OR (\"using using python python programming\"))".
• Removing quotes may allow a broader search: (( by computational using integer programming ) OR ( using using python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("by computational using integer programming") OR ("using using python python programming"))*.