Perhaps you should try some spelling variations:
"modified lighting optimization algorithms" » "modified lighting optimisation algorithm", "modified lighting estimation algorithm", "modified lighting optimized algorithms", "modified lighting estimation algorithms", "modified staffing optimization algorithms", "modified caging optimization algorithms"
"modified parameter estimation algorithms" » "modified parameter estimation algorithm", "modified parameter optimisation algorithm", "modified parameter approximation algorithms", "modified parameter estimates algorithms", "modified parameter optimization algorithms"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified lighting optimization algorithms\") OR (\"modified parameter estimation algorithms\"))~".
• Removing quotes may allow a broader search: (( modified lighting optimization algorithms ) OR ( modified parameter estimation algorithms ))~.
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