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

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified lighting optimisation algorithms\") OR (\"modified parameters optimisation algorithm\"))~".
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