Perhaps you should try some spelling variations:
"parameters optimisation algorithm" » "parameter optimization algorithm", "parameter estimation algorithm", "parameters optimization algorithms", "parameters estimation algorithm", "parameters estimation algorithms"
"notion optimisation algorithmssssssssssssssssssss" » "notion optimization algorithmsssssssssssssssssssss", "notion estimation algorithmssssssssssssssssssss", "notion estimation algorithmsssssssssssssssssssss", "network optimization algorithmssssssssssssssssssss"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("notion optimisation algorithmssssssssssssssssssss") or ("parameters optimisation algorithm"))~.
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