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