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