Perhaps you should try some spelling variations:
"using computational python computer program" » "using computacional python computer program" (Expand search), "using computacional vpython computer program" (Expand search), "using computacionais python computer program" (Expand search)
"and computational model computing program" » "and computational modeling computing program" (Expand search), "_ computational model computing program" (Expand search), "and computational model consulting program" (Expand search), "and computational model computador program" (Expand search), "and computational model computer programs" (Expand search), "and computational models computing program" (Expand search), "and computational model comprising program" (Expand search), "and computational model computer program" (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 computational model computing program") OR ("using computational python computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and computational model computing program\") OR (\"using computational python computer program\"))".
• Removing quotes may allow a broader search: (( and computational model computing program ) OR ( using computational python computer program )).
• Adding a wildcard symbol may retrieve word variants: (("and computational model computing program") OR ("using computational python computer program"))*.