Perhaps you should try some spelling variations:
"modified allocation estimation algorithm" » "modified allocation optimization algorithm", "modified motion estimation algorithm"
"modified based evolution algorithm" » "modified based solution algorithm", "modified based evolutionary algorithm", "modified based convolution algorithms", "modified based evaluation algorithm", "modified based solutions algorithm", "modified sales evolution algorithm", "modified male evolution algorithm"

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