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