Perhaps you should try some spelling variations:
"coder coder basic packing problem" » "coder coder based packing problem" (Expand search), "coder coder plastic packing problem" (Expand search), "coder coder bin packing problem" (Expand search), "coder decoder basic packing problem" (Expand search), "code code basic packing problem" (Expand search), "decoder codec basic packing problem" (Expand search), "coder model basic packing problem" (Expand search), "coder under basic packing problem" (Expand search)
"monty python python python programming" » "monty pythons python python programming" (Expand search), "monty piton python python programming" (Expand search), "monty pitons 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 basic packing problem") OR ("monty python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder basic packing problem\") OR (\"monty python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder basic packing problem ) OR ( monty python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder basic packing problem") OR ("monty python python python programming"))*.