Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithms", "modified allocation optimized algorithms", "modified _llocation optimization algorithms", "modified dfllocation optimization algorithms", "modified adamllocation optimization algorithms", "modified location optimization algorithms"
"modified a estimation algorithm" » "modified _ estimation algorithm", "modified a destination algorithm", "modified _ estimating algorithm", "modified df estimation algorithm", "modified adam estimation algorithm"

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