Perhaps you should try some spelling variations:
"coder coder packet scheduling problem" » "coder coder project scheduling problem" (Expand search), "coder coder harvest scheduling problem" (Expand search), "coder coder crew scheduling problem" (Expand search), "coder coded packets scheduling problem" (Expand search), "coder copper jacket scheduling problem" (Expand search), "coder per packet scheduling problem" (Expand search), "coder decoder packet scheduling problem" (Expand search), "code code packet scheduling problem" (Expand search), "decoder codec packet 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 packet scheduling problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder packet scheduling problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder packet scheduling problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder packet scheduling problem") OR ("api python python python programming"))*.