Perhaps you should try some spelling variations:
"coder coder binary packing problem" » "coder coder binary planning problem" (Expand search), "coder coder bin packing problem" (Expand search), "coder cover binary packing problem" (Expand search), "coder over binary packing problem" (Expand search), "coder under binary packing problem" (Expand search), "coder decoder binary packing problem" (Expand search), "code code binary packing problem" (Expand search), "decoder codec binary packing 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 binary packing problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder binary packing problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder binary packing problem ) OR ( api python python python programming ))*.