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