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 python computer program" (Expand search)
"using customers in python programming" » "using customer in python programming" (Expand search), "nursing customer in python programming" (Expand search), "among customers in python programming" (Expand search), "using customers _ 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 python computer program") OR ("using customers in python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational python computer program\") OR (\"using customers in python programming\"))".
• Removing quotes may allow a broader search: (( using computational python computer program ) OR ( using customers in python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computational python computer program") OR ("using customers in python programming"))*.