Perhaps you should try some spelling variations:
"modified notion optimisation algorithmsssss" » "modified notion optimization algorithms", "modified notion optimization algorithmssssss", "modified notion estimation algorithmsssss", "modified notion estimation algorithmssssss", "modified network optimization algorithmsssss"
"modified static optimisation algorithm" » "modified static optimization algorithms", "modified static estimation algorithm", "modified static estimation algorithms", "modified static optimization algorithm", "modified stage optimization algorithm", "modified stochastic optimization algorithm"

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