Perhaps you should try some spelling variations:
"modified multiobjective optimized algorithm" » "modified multiobjective optimization algorithm", "modified multiobjective optimized algorithms", "modified multiobjective optimizer algorithms"
"modified positive evolutionary algorithm" » "modified positive evolution algorithm", "modified positive solution algorithm", "modified objective evolutionary algorithm", "modified positive solutions algorithm", "modified passive evolutionary algorithm", "modified adaptive evolutionary algorithm"

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