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