Perhaps you should try some spelling variations:
"modified dfdaptive quantization algorithm" » "modified adaptive quantization algorithm", "modified dfdaptive estimation algorithm", "modified _daptive quantization algorithm", "modified adamdaptive quantization algorithm", "modified bi1daptive quantization algorithm"
"modified df solution algorithms" » "modified df solution algorithm", "modified df evolution algorithm", "modified df convolution algorithms", "modified _ solution algorithms", "modified adam solution algorithms", "modified bi1 solution algorithms", "modified drug solution algorithms", "modified up solutions algorithms"

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