Perhaps you should try some spelling variations:
"modified topology optimisation algorithmss" » "modified topology optimization algorithms", "modified topology estimation algorithms", "modified topology estimation algorithm", "modified topology optimization algorithmsss", "modified topology estimation algorithmss", "modified topology estimation algorithmsss", "modified topology optimization algorithmss", "modified policy optimization algorithmss"
"modified parameter optimisation algorithm" » "modified parameter optimization algorithm", "modified parameter estimation algorithm", "modified parameter optimization algorithms", "modified parameter estimation algorithms"

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