Perhaps you should try some spelling variations:
"coder coder sampling and problems" » "coder under sampling and problems" (Expand search), "coder over sampling and problems" (Expand search), "coder core sampling and problems" (Expand search), "coder coder sampling and problem" (Expand search), "coder decoder sampling and problems" (Expand search), "code code sampling and problems" (Expand search), "decoder codec sampling and problems" (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)

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