Perhaps you should try some spelling variations:
"allocation optimization algorithmssssssss" » "allocation optimization algorithms", "allocation optimization algorithmsssssssss", "allocation optimisation algorithmssssssss", "allocation estimation algorithmssssssss", "location optimization algorithmssssssss"
"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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