Perhaps you should try some spelling variations:
"based computational and computational programs" » "based computational and computational program" (Expand search), "based computational and computational programming" (Expand search), "based computational and operational programs" (Expand search), "by computational and computational programs" (Expand search), "based computational fluid computational programs" (Expand search), "based computational _ computational programs" (Expand search)
"using computation _ python programming" » "using computational _ python programming" (Expand search), "using imputation _ python programming" (Expand search), "using compilation _ 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: "((\"based computational and computational programs\") OR (\"using computation _ python programming\"))~".
• Removing quotes may allow a broader search: (( based computational and computational programs ) OR ( using computation _ python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computational and computational programs") OR ("using computation _ python programming"))*.