Perhaps you should try some spelling variations:
"write optimization algorithmssss" » "write optimization algorithms", "write optimisation algorithm", "write optimization algorithmsssss", "write optimisation algorithmssss", "write estimation algorithmssss", "game optimization algorithmssss", "qoe optimization algorithmssss", "stage optimization algorithmssss"
"parameters optimization algorithm" » "parameter optimization algorithm", "parameter estimation algorithm", "parameters optimization algorithms", "parameters optimisation algorithm", "parameters estimation algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"write optimization algorithmssss\") OR (\"parameters optimization algorithm\"))~".
• Removing quotes may allow a broader search: (( write optimization algorithmssss ) OR ( parameters optimization algorithm ))~.
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