Perhaps you should try some spelling variations:
"using computational and computation program" » "and computational and computation program" (Expand search), "using computational and computational program" (Expand search), "using computational and computational programs" (Expand search), "using computational and compensation program" (Expand search), "using computational fluid computation program" (Expand search), "using computational of computation program" (Expand search)
"using coding _ python programming" » "using coping _ python programming" (Expand search), "using coating _ python programming" (Expand search), "using cooking _ 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 and computation program") OR ("using coding _ python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational and computation program\") OR (\"using coding _ python programming\"))*".
• Removing quotes may allow a broader search: (( using computational and computation program ) OR ( using coding _ python programming ))*.