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