Perhaps you should try some spelling variations:
"coder coding object packing problem" » "coder coding object planning problem" (Expand search), "coder coding object tracking problem" (Expand search), "coder coding object marking problem" (Expand search), "coder coding object ranking problem" (Expand search), "coder moving object packing problem" (Expand search), "coder moving objects packing problem" (Expand search), "coder housing object packing problem" (Expand search), "modern coding object packing problem" (Expand search), "color coding object packing problem" (Expand search), "odor coding object 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 coding object packing problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding object packing problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coding object packing problem ) OR ( api python python python programming ))*.