Perhaps you should try some spelling variations:
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified multiobjective optimization algorithms"
"modified model solutions algorithms" » "modified model solution algorithm", "modified model evolution algorithm", "modified model convolution algorithms", "modified nodal solution algorithms", "modified global solutions algorithms", "modified male solutions 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 objective optimization algorithms\") OR (\"modified model solutions algorithms\"))~".
• Removing quotes may allow a broader search: (( modified objective optimization algorithms ) OR ( modified model solutions algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimization algorithms") OR ("modified model solutions algorithms"))*.