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