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