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

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified notion optimization algorithmsssss") OR ("modified objective optimization algorithm"))~.
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