Perhaps you should try some spelling variations:
"modified allocation optimization algorithm" » "modified allocation optimization algorithms", "modified allocation optimisation algorithm", "modified allocation estimation algorithm", "modified location optimization algorithm"
"modified pulse optimized algorithms" » "modified pulse optimized algorithm", "modified pulse optimizer algorithms", "modified pulse optimization algorithms", "modified male optimized algorithms", "modified passive optimized algorithms"

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