Perhaps you should try some spelling variations:
"and computational vpython computer program" » "and computacional vpython computer program" (Expand search), "and computacional python computer program" (Expand search), "and computational method computer program" (Expand search), "_ computational vpython computer program" (Expand search), "and computational python computer program" (Expand search), "and computational vision computer program" (Expand search)
"using cone from python programming" » "using cone from pathogen programming" (Expand search), "using cone from anthony programming" (Expand search), "using clone from python programming" (Expand search), "using zone from python programming" (Expand search), "using one from 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 vpython computer program\") OR (\"using cone from python programming\"))~".
• Removing quotes may allow a broader search: (( and computational vpython computer program ) OR ( using cone from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and computational vpython computer program") OR ("using cone from python programming"))*.