Perhaps you should try some spelling variations:
"of computation using linear programming" » "of computations using linear programming" (Expand search), "of computation in linear programming" (Expand search), "of composition using linear programming" (Expand search), "of computational using linear programming" (Expand search), "the computation using linear 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: (("of computation using linear programming") OR ("using using python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"of computation using linear programming\") OR (\"using using python python programming\"))".
• Removing quotes may allow a broader search: (( of computation using linear programming ) OR ( using using python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("of computation using linear programming") OR ("using using python python programming"))*.