Perhaps you should try some spelling variations:
"teaching computation using computer programming" » "teaching computational using computer programming" (Expand search), "teaching competitions using computer programming" (Expand search), "teaching compensation using computer programming" (Expand search), "teaching computation using computer program" (Expand search), "teaching computation using computer programs" (Expand search), "teaching computations using computer programming" (Expand search), "teaching computation in computer programming" (Expand search), "teaching composition using computer programming" (Expand search)
"using class from python programming" » "using glass from python programming" (Expand search), "ruling class from python programming" (Expand search), "using class from pathogen programming" (Expand search), "using class from anthony programming" (Expand search), "using clays from python programming" (Expand search), "using classes from 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 programming\") OR (\"using class from python programming\"))~".
• Removing quotes may allow a broader search: (( teaching computation using computer programming ) OR ( using class from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("teaching computation using computer programming") OR ("using class from python programming"))*.