Perhaps you should try some spelling variations:
"modified co convolution algorithms" » "modified co evolution algorithm", "modified co solution algorithm", "modified co evolution algorithms", "modified _ convolution algorithms", "modified df convolution algorithms", "modified orca convolution algorithms"
"modified complexity approximation algorithms" » "modified _mplexity approximation algorithms", "modified dfmplexity approximation algorithms", "modified orcamplexity approximation algorithms"

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