Perhaps you should try some spelling variations:
"and computation and generalized array" » "and computation and generalized arma" (Expand search), "and computation and generalized airy" (Expand search), "and computation and generalized early" (Expand search), "and computational and generalized array" (Expand search), "of computation and generalized array" (Expand search), "and computation of generalized array" (Expand search), "and computation in generalized array" (Expand search), "and computation _ generalized array" (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.

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