Perhaps you should try some spelling variations:
"and computational modeling computer program" » "_ computational modeling computer program" (Expand search), "and computational model computer program" (Expand search), "and computational routing computer program" (Expand search)
"using modes from python programming" » "using models from python programming" (Expand search), "using modis from python programming" (Expand search), "using model from python programming" (Expand search), "using modes from pathogen programming" (Expand search), "using modes from anthony programming" (Expand search), "using codes 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 modeling computer program\") OR (\"using modes from python programming\"))~".
• Removing quotes may allow a broader search: (( and computational modeling computer program ) OR ( using modes from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and computational modeling computer program") OR ("using modes from python programming"))*.