Perhaps you should try some spelling variations:
"coder coder switching frequency data" » "coder code switching frequency data" (Expand search), "coder colar switching frequency data" (Expand search), "coder mode switching frequency data" (Expand search), "coder coder switching frequency and" (Expand search), "coder coder switching frequency domain" (Expand search), "coder decoder switching frequency data" (Expand search), "code code switching frequency data" (Expand search), "decoder codec switching frequency data" (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: (("coder coder switching frequency data") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder switching frequency data\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder switching frequency data ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder switching frequency data") OR ("api python python python programming"))*.