Perhaps you should try some spelling variations:
"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)
"coder coder civel signal processing" » "coder coder recived signal processing" (Expand search), "coder coder driven signal processing" (Expand search), "coder coder cell signal processing" (Expand search), "coder decoder civel signal processing" (Expand search), "code code civel signal processing" (Expand search), "decoder codec civel signal processing" (Expand search), "coder code civil signal processing" (Expand search), "coder poder civil signal processing" (Expand search), "coder border civil signal processing" (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 civel signal processing") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder civel signal processing\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder civel signal processing ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder civel signal processing") OR ("api python python python programming"))*.