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