Perhaps you should try some spelling variations:
"coder coder using frequency sampling" » "coder coder using frequency coupling" (Expand search), "coder coder using frequency scaling" (Expand search), "coder coder using frequency doubling" (Expand search), "coder coder single frequency sampling" (Expand search), "coder coder feeding frequency sampling" (Expand search), "coder coder grazing frequency sampling" (Expand search), "coder decoder using frequency sampling" (Expand search), "code code using frequency sampling" (Expand search), "decoder codec using frequency sampling" (Expand search), "coder coders using frequency sampling" (Expand search), "coder cover using frequency sampling" (Expand search), "coder code using frequency sampling" (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 using frequency sampling") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder using frequency sampling\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder using frequency sampling ) OR ( api python python python programming ))*.