Perhaps you should try some spelling variations:
"modified stochastic evolutionary algorithm" » "modified stochastic evolution algorithm", "modified stochastic solution algorithm"
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified stochastic evolutionary algorithm") OR ("modified objective estimation algorithm"))~.
• Removing quotes may allow a broader search: (( modified stochastic evolutionary algorithm ) or ( modified objective estimation algorithm ))~.
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