Perhaps you should try some spelling variations:
"teaching computation using subsampling program" » "teaching computational using subsampling program" (Expand search), "teaching competitions using subsampling program" (Expand search), "teaching compensation using subsampling program" (Expand search), "teaching computation using sampling program" (Expand search), "teaching computations using subsampling program" (Expand search), "teaching computation in subsampling program" (Expand search), "teaching composition using subsampling program" (Expand search), "teaching computation and subsampling program" (Expand search)
"using code form python programming" » "using cone form python programming" (Expand search), "using co form python programming" (Expand search), "using co2 form 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 computation using subsampling program") OR ("using code form python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching computation using subsampling program\") OR (\"using code form python programming\"))".
• Removing quotes may allow a broader search: (( teaching computation using subsampling program ) OR ( using code form python programming )).
• Adding a wildcard symbol may retrieve word variants: (("teaching computation using subsampling program") OR ("using code form python programming"))*.