Perhaps you should try some spelling variations:
"based computation using routing problem" » "based computational using routing problem" (Expand search), "based competition using routing problem" (Expand search), "based compilation using routing problem" (Expand search), "based computations using routing problem" (Expand search), "based computation in routing problem" (Expand search), "based composition using routing problem" (Expand search), "based computation using routine problem" (Expand search), "based computation nursing routing problem" (Expand search), "based computation using rotating problem" (Expand search)
"using modeling python python programming" » "using modeling vpython python programming" (Expand search), "using modeling pitting python programming" (Expand search), "using model python python programming" (Expand search), "using modern python python programming" (Expand search), "using models python python programming" (Expand search), "using modeling pythons python programming" (Expand search), "using modeling piton python programming" (Expand search), "using modeling pitons 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: (("based computation using routing problem") OR ("using modeling python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computation using routing problem\") OR (\"using modeling python python programming\"))".
• Removing quotes may allow a broader search: (( based computation using routing problem ) OR ( using modeling python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based computation using routing problem") OR ("using modeling python python programming"))*.