Perhaps you should try some spelling variations:
"modified objective optimization algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective estimation algorithm"
"modified multiobjective lot algorithm" » "modified multiobjective mom algorithm", "modified multiobjective mppt algorithm", "modified multiobjective _ algorithm"

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