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