Perhaps you should try some spelling variations:
"based computation by nested problem" » "based computational by nested problem" (Expand search), "based competition by nested problem" (Expand search), "based compilation by nested problem" (Expand search), "based computation of nested problem" (Expand search), "based computation _ nested problem" (Expand search), "based computation in nested problem" (Expand search), "based computation by neste problema" (Expand search), "based computation by nested probe" (Expand search), "based computation by related problem" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python 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 computation by nested problem") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computation by nested problem\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( based computation by nested problem ) OR ( using python python python programming ))*.