Perhaps you should try some spelling variations:
"and computational in clustering problems" » "and computational in clustering problem" (Expand search), "and computational in clustering process" (Expand search), "and computational in counting problems" (Expand search), "_ computational in clustering problems" (Expand search), "and computational and clustering problems" (Expand search), "and computational _ clustering problems" (Expand search), "and computational 3d clustering problems" (Expand search), "and computational on clustering problems" (Expand search), "and computational spin clustering problems" (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: "((\"and computational in clustering problems\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( and computational in clustering problems ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and computational in clustering problems") OR ("using coding python python programming"))*.