Perhaps you should try some spelling variations:
"modified objective convolution algorithms" » "modified objective evolution algorithm"
"modified learning solution algorithm" » "modified learning evolution algorithm", "modified learning evolutionary algorithm", "modified learning estimation algorithm", "mobile learning solution algorithm", "modified caging solution algorithm", "modified learning convolution algorithm", "modified learning emotion algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified learning solution algorithm\") OR (\"modified objective convolution algorithms\"))~".
• Removing quotes may allow a broader search: (( modified learning solution algorithm ) OR ( modified objective convolution algorithms ))~.
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