Perhaps you should try some spelling variations:
"modified caging estimation algorithmss" » "modified caging estimation algorithms", "modified caging estimation algorithm", "modified caging optimization algorithms", "modified lighting estimation algorithmss"
"modified objective solution algorithm" » "modified objective evolutionary algorithm", "modified objective allocation algorithm", "modified objective evolution algorithm", "modified objective convolution algorithms"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective solution algorithm") OR ("modified caging estimation algorithmss"))~.
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