Perhaps you should try some spelling variations:
"modified allocation optimisation algorithm" » "modified allocation optimization algorithm", "modified allocation optimization algorithms", "modified allocation estimation algorithm", "modified allocation estimation algorithms"
"modified network optimisation algorithms" » "modified network optimization algorithms", "modified network estimation algorithms", "modified network estimation algorithm", "modified network optimization algorithmss", "modified network estimation algorithmss", "certified network optimisation algorithms", "defined network optimisation algorithms", "modified near optimisation algorithms"

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