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

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