Perhaps you should try some spelling variations:
"modified carbon optimisation algorithm" » "modified carbon optimization algorithms", "modified carbon estimation algorithm", "modified carbon estimation algorithms"
"modified learning convolution algorithm" » "modified learning convolution algorithms", "modified learning evolution algorithm", "modified learning solution algorithm", "mobile learning convolution algorithm", "modified caging convolution algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified learning convolution algorithm") OR ("modified carbon optimisation algorithm"))~.
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