Perhaps you should try some spelling variations:
"using computational in computer program" » "and computational in computer program" (Expand search), "using computational and computer program" (Expand search), "using computational _ computer program" (Expand search), "using computational 3d computer program" (Expand search)
"using modeling and python programming" » "using model and python programming" (Expand search), "using modern and python programming" (Expand search), "using models and python programming" (Expand search), "using modeling in python programming" (Expand search), "using modeling on python programming" (Expand search), "using modeling api 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: (("using computational in computer program") OR ("using modeling and python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational in computer program\") OR (\"using modeling and python programming\"))".
• Removing quotes may allow a broader search: (( using computational in computer program ) OR ( using modeling and python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computational in computer program") OR ("using modeling and python programming"))*.