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

You may be able to get more results by adjusting your search query.

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