Perhaps you should try some spelling variations:
"modified dfdamdaptive quantization algorithm" » "modified adaptive quantization algorithm", "modified _damdaptive quantization algorithm", "modified adamdamdaptive quantization algorithm", "modified bi1damdaptive quantization algorithm"
"modified df estimation algorithm" » "modified _ estimation algorithm", "modified adam estimation algorithm", "modified bi1 estimation algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified df estimation algorithm") OR ("modified dfdamdaptive quantization algorithm"))~.
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