Perhaps you should try some spelling variations:
"coder coder distributed hall problem" » "coder model distributed hall problem" (Expand search), "coder over distributed hall problem" (Expand search), "coder order distributed hall problem" (Expand search), "coder coder distributed small problem" (Expand search), "coder coder distributed hash problem" (Expand search), "coder coder distributed hard problem" (Expand search), "coder coder distributed pbl problem" (Expand search), "coder decoder distributed hall problem" (Expand search), "code code distributed hall problem" (Expand search), "decoder codec distributed hall 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 distributed hall problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder distributed hall problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder distributed hall problem ) OR ( api python python python programming ))*.