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