Perhaps you should try some spelling variations:
"teaching computation of java programming" » "teaching computational of java programming" (Expand search), "teaching competitions of java programming" (Expand search), "teaching compensation of java programming" (Expand search), "teaching computation of and programming" (Expand search), "teaching computation of based programming" (Expand search), "teaching computation of goal programming" (Expand search), "teaching computation of japan programming" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python python 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 of java programming") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching computation of java programming\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( teaching computation of java programming ) OR ( using python python python programming ))*.