Perhaps you should try some spelling variations:
"modified stochastic optimization algorithm" » "modified stochastic optimization algorithms", "modified stochastic optimisation algorithm", "modified stochastic estimation algorithm"
"modified caging estimation algorithms" » "modified caging estimation algorithm", "modified caging optimization algorithms", "modified caging optimisation algorithm", "modified lighting estimation algorithms"

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• Removing quotes may allow a broader search: (( modified caging estimation algorithms ) OR ( modified stochastic optimization algorithm ))~.
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