Perhaps you should try some spelling variations:
"and computational python computer program" » "and computacional python computer program" (Expand search), "and computacional vpython computer program" (Expand search), "and computacionais python computer program" (Expand search), "_ computational python computer program" (Expand search)
"based computational model computing program" » "by computational model computing program" (Expand search), "based computational modeling computing program" (Expand search), "based computational model consulting program" (Expand search), "based computational model computador program" (Expand search), "based computational model computer programs" (Expand search), "based computational models computing program" (Expand search), "based computational model comprising program" (Expand search), "based computational model computer program" (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 python computer program\") OR (\"based computational model computing program\"))~".
• Removing quotes may allow a broader search: (( and computational python computer program ) OR ( based computational model computing program ))~.
• Adding a wildcard symbol may retrieve word variants: (("and computational python computer program") OR ("based computational model computing program"))*.