Perhaps you should try some spelling variations:
"coder coder pattern signal processing" » "coder coder matter signal processing" (Expand search), "coder coder pattern seal processing" (Expand search), "coder coder pattern clonal processing" (Expand search), "coder cover pattern signal processing" (Expand search), "coder cover patterns signal processing" (Expand search), "coder powder pattern signal processing" (Expand search), "coder decoder pattern signal processing" (Expand search), "code code pattern signal processing" (Expand search), "decoder codec pattern signal 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)

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 pattern signal processing") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder pattern signal processing\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder pattern signal processing ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder pattern signal processing") OR ("api python python python programming"))*.