Perhaps you should try some spelling variations:
"modified objective optimization algorithmsssss" » "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified multiobjective optimization algorithmsssss", "modified objective optimization algorithmssssss", "modified objective optimisation algorithmsssss", "modified objective estimation algorithmsssss"
"defined network optimization algorithm" » "defined network optimization algorithms", "defined network optimisation algorithm", "defined network estimation algorithm"

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