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