Perhaps you should try some spelling variations:
"modified df estimation algorithm" » "modified _ estimation algorithm", "modified adam estimation algorithm", "modified bi1 estimation algorithm"
"modified dfdamdamdamdaptive quantization algorithm" » "modified _damdamdamdaptive quantization algorithm", "modified adamdamdamdamdaptive quantization algorithm", "modified bi1damdamdamdaptive quantization algorithm"

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