Perhaps you should try some spelling variations:
"power functions and teaching processing" » "power functions and leaching coprocessing" (Expand search), "power functions and teaching proceedings" (Expand search), "power functions and teaching professions" (Expand search), "power function and teaching processing" (Expand search), "motor functions and teaching processing" (Expand search), "taper functions and teaching processing" (Expand search), "power functional and teaching processing" (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: (("power functions and teaching processing") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"power functions and teaching processing\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( power functions and teaching processing ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("power functions and teaching processing") OR ("api python python python programming"))*.