Perhaps you should try some spelling variations:
"teaching computation in database from" » "teaching computational in database from" (Expand search), "teaching competitions in database from" (Expand search), "teaching compensation in database from" (Expand search), "teaching computation and database from" (Expand search), "teaching computation of database from" (Expand search), "teaching imputation in database from" (Expand search), "teaching computation in databases from" (Expand search), "teaching computation _ database from" (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 in database from") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching computation in database from\") OR (\"using python python python programming\"))*".
• Removing quotes may allow a broader search: (( teaching computation in database from ) OR ( using python python python programming ))*.