Perhaps you should try some spelling variations:
"coder coder tasks scheduling problem" » "coder coder task scheduling problem" (Expand search), "coder coder based scheduling problem" (Expand search), "coder coder and scheduling problem" (Expand search), "coder decoder tasks scheduling problem" (Expand search), "code code tasks scheduling problem" (Expand search), "decoder codec tasks scheduling problem" (Expand search), "coder coded masks scheduling problem" (Expand search), "coder worker tasks 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 tasks scheduling problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder tasks scheduling problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder tasks scheduling problem ) OR ( api python python python programming ))*.