Perhaps you should try some spelling variations:
"coder coder tunnel testing problem" » "coder coder tunnel nesting problem" (Expand search), "coder coder tunnel nesting problems" (Expand search), "coder coder tunnel teaching problem" (Expand search), "coder cover tunnels testing problem" (Expand search), "coder under tunnel testing problem" (Expand search), "coder modern funnel testing problem" (Expand search), "coder decoder tunnel testing problem" (Expand search), "code code tunnel testing problem" (Expand search), "decoder codec tunnel 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 tunnel testing problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder tunnel testing problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder tunnel testing problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder tunnel testing problem") OR ("api python python python programming"))*.