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