Perhaps you should try some spelling variations:
"modified allocation estimation algorithm" » "modified allocation optimization algorithm", "modified motion estimation algorithm"
"modified lighting optimized algorithms" » "modified lighting optimized algorithm", "modified lighting optimizer algorithms", "modified lighting optimization algorithms", "modified caging optimized algorithms"

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