Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective optimisation algorithm"
"modified pose estimation algorithmssss" » "modified pose estimation algorithm", "modified pose estimation algorithmsss", "modified pose optimization algorithmssss", "modified pose optimisation algorithmsss", "modified male estimation algorithmssss", "modified passive estimation algorithmssss"

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