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 orcad solution algorithm" » "modified orcad evolution algorithm", "modified orcad convolution algorithms", "modified orcad evolutionary algorithm", "modified orca solution algorithm", "modified norway solution algorithm"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective optimization algorithms") OR ("modified orcad solution algorithm"))~.
• Removing quotes may allow a broader search: (( modified objective optimization algorithms ) or ( modified orcad solution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimization algorithms") or ("modified orcad solution algorithm"))*.