Perhaps you should try some spelling variations:
"code coverage in teaching programming" » "code coverage in teaching program" (Expand search), "care coverage in teaching programming" (Expand search), "and coverage in teaching programming" (Expand search), "the coverage in teaching programming" (Expand search), "code coverage of teaching programming" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python python python programming" (Expand search), "manim 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: (("code coverage in teaching programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"code coverage in teaching programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( code coverage in teaching programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("code coverage in teaching programming") OR ("api python python python programming"))*.