Perhaps you should try some spelling variations:
"coder coder distributed pbl problem" » "coder model distributed pbl problem" (Expand search), "coder over distributed pbl problem" (Expand search), "coder order distributed pbl problem" (Expand search), "coder coder distributed by problem" (Expand search), "coder coder distributed phr problem" (Expand search), "coder coder distributed dbp problem" (Expand search), "coder decoder distributed pbl problem" (Expand search), "code code distributed pbl problem" (Expand search), "decoder codec distributed pbl 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.

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