Perhaps you should try some spelling variations:
"coder coder worst testing problem" » "coder coder worst nesting problem" (Expand search), "coder coder worst nesting problems" (Expand search), "coder coder worst teaching problem" (Expand search), "coder coder forests testing problem" (Expand search), "coder coder fast testing problem" (Expand search), "coder coder joint testing problem" (Expand search), "coder decoder worst testing problem" (Expand search), "code code worst testing problem" (Expand search), "decoder codec worst testing 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)

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