Perhaps you should try some spelling variations:
"modified objective evolution algorithm" » "modified objective evolutionary algorithm", "modified objective allocation algorithm", "modified objective convolution algorithms", "modified objective estimation algorithm"
"modified multiobjective solution algorithm" » "modified multiobjective convolution algorithms", "modified multiobjective evolutionary algorithm", "modified multiobjective estimation algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective evolution algorithm") OR ("modified multiobjective solution algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified objective evolution algorithm\") OR (\"modified multiobjective solution algorithm\"))*".
• Removing quotes may allow a broader search: (( modified objective evolution algorithm ) OR ( modified multiobjective solution algorithm ))*.