Perhaps you should try some spelling variations:
"parameters optimization algorithmssssssssssss" » "parameter optimization algorithmssssssssssss", "parameter estimation algorithmssssssssssss", "parameters optimization algorithmsssssssssssss", "parameters optimisation algorithmssssssssssss", "parameters estimation algorithmssssssssssss"
"allocation optimization algorithm" » "allocation optimization algorithms", "allocation optimisation algorithm", "allocation estimation algorithm", "location optimization algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"allocation optimization algorithm\") OR (\"parameters optimization algorithmssssssssssss\"))~".
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