Perhaps you should try some spelling variations:
"coder coder duration frequency code" » "coder power duration frequency code" (Expand search), "coder order duration frequency code" (Expand search), "coder longer duration frequency code" (Expand search), "coder coder duration frequency model" (Expand search), "coder coder duration frequency comb" (Expand search), "coder coder duration frequency combs" (Expand search), "coder decoder duration frequency code" (Expand search), "code code duration frequency code" (Expand search), "decoder codec duration frequency code" (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 duration frequency code") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder duration frequency code\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder duration frequency code ) OR ( api python python python programming ))*.