Perhaps you should try some spelling variations:
"modified multiobjective optimizer algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective optimized algorithms", "modified multiobjective optimized algorithm"
"model focusing method algorithm" » "model focusing mom algorithm", "model forecasting method algorithm", "model using method algorithm", "total focusing method algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"model focusing method algorithm\") OR (\"modified multiobjective optimizer algorithms\"))~".
• Removing quotes may allow a broader search: (( model focusing method algorithm ) OR ( modified multiobjective optimizer algorithms ))~.
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