Perhaps you should try some spelling variations:
"using computational and computer program" » "and computational and computer program" (Expand search), "using computational fluid computer program" (Expand search), "using computational _ computer program" (Expand search)
"using coding open python programming" » "using coping open python programming" (Expand search), "using coating open python programming" (Expand search), "using cooking open python programming" (Expand search), "using coding over python programming" (Expand search), "using going open python programming" (Expand search), "using coding opencv python programming" (Expand search), "using coding on 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: "((\"using computational and computer program\") OR (\"using coding open python programming\"))~".
• Removing quotes may allow a broader search: (( using computational and computer program ) OR ( using coding open python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computational and computer program") OR ("using coding open python programming"))*.