Perhaps you should try some spelling variations:
"modified df convolutional algorithm" » "modified df convolution algorithms", "modified df evolution algorithm", "modified df evolutionary algorithm", "modified d convolutional algorithm", "modified deep convolutional algorithm", "modified _ convolutional algorithm", "modified adam convolutional algorithm", "modified bi1 convolutional algorithm"
"defined network optimisation algorithm" » "defined network optimization algorithms", "defined network estimation algorithm", "defined network estimation algorithms", "defined network optimization algorithm"

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