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

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• Performing a fuzzy search may retrieve terms with similar spellings: (( modified qoe optimization algorithms ) OR ( modified passive optimisation algorithm ))~.
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