Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
optimization algorithm » optimisation algorithm, estimation algorithm, estimation algorithms
passive optimization » bayesian optimization, game optimization, policy optimization
bi1 optimization » _ optimization, qoe optimization, game optimization
modified passive » modified adaptive
modified bi1 » modified _

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• Performing a fuzzy search may retrieve terms with similar spellings: (( modified bi1 optimization algorithm ) or ( modified passive optimization algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified bi1 optimization algorithm ) OR ( modified passive optimization algorithms )).
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