Perhaps you should try some spelling variations:
"modified changing estimation algorithmsss" » "modified changing estimation algorithms", "modified changing estimation algorithm", "modified channel estimation algorithmsss", "modified charging station algorithmsss", "modified caging estimation algorithmsss"
"modified objective optimisation algorithm" » "modified objective optimization algorithm", "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective estimation algorithm", "modified objective estimation algorithms"

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