Perhaps you should try some spelling variations:
"attributed optimization algorithmssssss" » "attributed optimization algorithms", "attributed optimisation algorithm", "attribute optimization algorithmssssss", "attributed optimization algorithmsssssss", "attributed optimisation algorithmssssss", "attributed estimation algorithmssssss"
"parameters optimization algorithm" » "parameter optimization algorithm", "parameter estimation algorithm", "parameters optimization algorithms", "parameters optimisation algorithm", "parameters estimation algorithm"

Try widening your search to All Fields.

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