Perhaps you should try some spelling variations:
"based computations using ranking problem" » "based computation using ranking problem" (Expand search), "based computational using ranking problem" (Expand search), "based competition using ranking problem" (Expand search), "based populations using ranking problem" (Expand search), "based computations in ranking problem" (Expand search), "based computations using packing problem" (Expand search), "based computations using making problem" (Expand search), "based computations using landing problem" (Expand search), "based computations using stacking problem" (Expand search), "based computations using resting 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computations using ranking problem\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( based computations using ranking problem ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computations using ranking problem") OR ("using coding python python programming"))*.