Perhaps you should try some spelling variations:
"based computation in clustering problem" » "based computation in covering problem" (Expand search), "based computational in clustering problem" (Expand search), "based competition in clustering problem" (Expand search), "based compilation in clustering problem" (Expand search), "based computation and clustering problem" (Expand search), "based computation of clustering problem" (Expand search), "based imputation in clustering problem" (Expand search), "based computation on clustering problem" (Expand search), "based computation spin clustering problem" (Expand search)
"using using python python programming" » "using using pythons python programming" (Expand search), "using using piton python programming" (Expand search), "using using pitons python programming" (Expand search), "using usando python python programming" (Expand search), "using in python python programming" (Expand search), "using fusing python python programming" (Expand search), "housing using python python programming" (Expand search), "nursing using python python programming" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computation in clustering problem\") OR (\"using using python python programming\"))".
• Removing quotes may allow a broader search: (( based computation in clustering problem ) OR ( using using python python programming )).
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