Perhaps you should try some spelling variations:
"modified adam optimization algorithms" » "modified adam optimisation algorithm", "modified adam estimation algorithms", "modified adam estimation algorithm", "modified game optimization algorithms", "modified stage optimization algorithms", "modified _ optimization algorithms", "modified df optimization algorithms", "modified near optimization algorithms"
"modified objective allocation algorithm" » "modified objective estimation algorithm", "modified objective evolution algorithm", "modified objective predation algorithm"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified adam optimization algorithms") OR ("modified objective allocation algorithm"))*.
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