Perhaps you should try some spelling variations:
"and computation in variable problem" » "and computation in variable probit" (Expand search), "and computation in variable power" (Expand search), "and computation in variable prices" (Expand search), "and computational in variable problem" (Expand search), "of computation in variable problem" (Expand search), "and computation and variable problem" (Expand search), "and computation of variable problem" (Expand search), "and imputation in variable problem" (Expand search), "and computation _ variable 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.

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