Perhaps you should try some spelling variations:
"and computation using cognitive problem" » "and computations using cognitive problem" (Expand search), "and computation in cognitive problem" (Expand search), "and composition using cognitive problem" (Expand search), "and computation using cognitive problems" (Expand search), "and computation using cognitive profiles" (Expand search), "and computation using cognitive troubles" (Expand search), "and computational using cognitive problem" (Expand search), "of computation using cognitive problem" (Expand search)
"using modeling vpython python programming" » "using modeling method python programming" (Expand search), "using model vpython python programming" (Expand search), "using modern vpython python programming" (Expand search), "using models vpython python programming" (Expand search), "using modeling python python programming" (Expand search), "using modeling pythons python programming" (Expand search), "using modeling piton 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 using cognitive problem") OR ("using modeling vpython python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and computation using cognitive problem\") OR (\"using modeling vpython python programming\"))".
• Removing quotes may allow a broader search: (( and computation using cognitive problem ) OR ( using modeling vpython python programming )).
• Adding a wildcard symbol may retrieve word variants: (("and computation using cognitive problem") OR ("using modeling vpython python programming"))*.