Perhaps you should try some spelling variations:
"coder coder processor scheduling problem" » "coder coder process scheduling problem" (Expand search), "coder coder processes rescheduling problem" (Expand search), "coder coder multiprocessor scheduling problem" (Expand search), "coder core processor scheduling problem" (Expand search), "coder poder processos scheduling problem" (Expand search), "coder model processor scheduling problem" (Expand search), "coder decoder processor scheduling problem" (Expand search), "code code processor scheduling problem" (Expand search), "decoder codec processor 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 processor scheduling problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder processor scheduling problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder processor scheduling problem ) OR ( api python python python programming ))*.