Perhaps you should try some spelling variations:
"modified over optimization algorithms" » "modified over optimisation algorithm", "modified over estimation algorithm", "modified over optimized algorithms", "modified qoe optimization algorithms", "modified _ optimization algorithms", "modified game optimization algorithms", "modified near optimization algorithms", "modified orca optimization algorithms"
"modified allocation estimation algorithms" » "modified allocation optimization algorithms", "modified motion estimation algorithms", "modified allocation estimation algorithm", "modified allocation optimisation algorithm", "modified allocation approximation algorithms"

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