Perhaps you should try some spelling variations:
"modified deep convolution algorithms" » "modified deep evolution algorithm", "modified deep solution algorithm", "modified deep convolutional algorithms", "modified delphi convolution algorithms", "modified df convolution algorithms", "modified near convolution algorithms"
"modified notion estimation algorithms" » "modified notion estimation algorithm", "modified notion optimization algorithms", "modified notion optimisation algorithm", "modified motion estimation algorithms"

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