Perhaps you should try some spelling variations:
"teaching computation using active problems" » "teaching computational using active problems" (Expand search), "teaching competitions using active problems" (Expand search), "teaching compensation using active problems" (Expand search), "teaching computations using active problems" (Expand search), "teaching computation in active problems" (Expand search), "teaching composition using active problems" (Expand search), "teaching computation using practice problems" (Expand search), "teaching computation using additive problems" (Expand search), "teaching computation using adaptive problems" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking python 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 active problems\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( teaching computation using active problems ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("teaching computation using active problems") OR ("using coding python python programming"))*.