Perhaps you should try some spelling variations:
"and computation in security programming" » "and computation in secure programming" (Expand search), "and computation in security program" (Expand search), "and computation in security programs" (Expand search), "and computational in security programming" (Expand search), "of computation in security programming" (Expand search), "and computation and security programming" (Expand search), "and computation of security programming" (Expand search), "and imputation in security programming" (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: (("and computation in security programming") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and computation in security programming\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( and computation in security programming ) OR ( using python python python programming ))*.