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