Perhaps you should try some spelling variations:
optimisation algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
topology optimisation » topology optimization, policy optimization
parameter » parameters

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• Performing a fuzzy search may retrieve terms with similar spellings: (( topology optimisation algorithms ) or ( parameter optimization algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( topology optimisation algorithms ) OR ( parameter optimization algorithms )).
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