Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified location optimization algorithms"
"modified made convolution algorithms" » "modified made evolution algorithm", "modified made solution algorithm", "modified male convolution algorithms", "modified adam convolution algorithms", "modified df convolution algorithms"

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