Perhaps you should try some spelling variations:
"coder coder distributed open problems" » "coder model distributed open problems" (Expand search), "coder over distributed open problems" (Expand search), "coder order distributed open problems" (Expand search), "coder coder distributed on problems" (Expand search), "coder coder distributed order problems" (Expand search), "coder coder distributed event problems" (Expand search), "coder decoder distributed open problems" (Expand search), "code code distributed open problems" (Expand search), "decoder codec distributed open problems" (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 open problems\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder distributed open problems ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder distributed open problems") OR ("api python python python programming"))*.