Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm"
"modified orca solution algorithms" » "modified orca solution algorithm", "modified orca evolution algorithm", "modified orca convolution algorithms", "modified norway solution algorithms", "modified drug solution algorithms", "modified nacl solution algorithms"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified orca solution algorithms\") OR (\"modified multiobjective optimization algorithms\"))~".
• Removing quotes may allow a broader search: (( modified orca solution algorithms ) OR ( modified multiobjective optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified orca solution algorithms") OR ("modified multiobjective optimization algorithms"))*.