Perhaps you should try some spelling variations:
"based computational data clustering problem" » "and computational data clustering problem" (Expand search), "by computational data clustering problem" (Expand search), "based computational and clustering problem" (Expand search), "based compositional data clustering problem" (Expand search), "based computational art clustering problem" (Expand search), "based computational data covering 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 computational data clustering problem") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computational data clustering problem\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( based computational data clustering problem ) OR ( using python python python programming ))*.