Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
objective evolution » objective evolutionary, objective allocation
evolution algorithm » solution algorithm, evolutionary algorithm, convolution algorithms
df optimization » _ optimization, qoe optimization, _ optimisation
modified df » modified _, modified adam, modified bi1

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