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)
"coder coder pole signal processing" » "coder decoder pole signal processing" (Expand search), "code code pole signal processing" (Expand search), "decoder codec pole signal processing" (Expand search), "coder coder wolfe signal processing" (Expand search), "coder coder mode signal processing" (Expand search), "coder coder some signal processing" (Expand search), "coder lower pole signal processing" (Expand search), "coder poder pol signal processing" (Expand search), "coder codes police 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 pole signal processing") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder pole signal processing\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder pole signal processing ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder pole signal processing") OR ("api python python python programming"))*.