Perhaps you should try some spelling variations:
"based computational and pulling program" » "and computational and pulling program" (Expand search), "by computational and pulling program" (Expand search), "based computational fluid pulling program" (Expand search), "based computational and culling program" (Expand search), "based computational and spelling program" (Expand search), "based computational and spelling programs" (Expand search), "based computational and pulsing program" (Expand search), "based computational and filling program" (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: (("based computational and pulling program") OR ("using modeling vpython python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computational and pulling program\") OR (\"using modeling vpython python programming\"))".
• Removing quotes may allow a broader search: (( based computational and pulling program ) OR ( using modeling vpython python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based computational and pulling program") OR ("using modeling vpython python programming"))*.