Perhaps you should try some spelling variations:
"based computational on rooting problem" » "and computational on rooting problem" (Expand search), "by computational on rooting problem" (Expand search), "based computational one rooting problem" (Expand search), "based computacional on rooting problem" (Expand search), "based computational and rooting problem" (Expand search), "based computational on routing problem" (Expand search), "based computational on routing problems" (Expand search), "based computational on grooming problem" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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: (("based computational on rooting problem") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computational on rooting problem\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( based computational on rooting problem ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based computational on rooting problem") OR ("using coding python python programming"))*.