Perhaps you should try some spelling variations:
"coder coder doing packing problem" » "coder coder doing planning problem" (Expand search), "coder coder aging packing problem" (Expand search), "coder coder doing teaching problem" (Expand search), "coder coder bin packing problem" (Expand search), "coder decoder doing packing problem" (Expand search), "code code doing packing problem" (Expand search), "decoder codec doing packing problem" (Expand search), "coder codes going packing problem" (Expand search), "coder modelo doing packing problem" (Expand search), "coder coders using 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 doing packing problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder doing packing problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder doing packing problem ) OR ( api python python python programming ))*.