Perhaps you should try some spelling variations:
"modified pulsed optimization algorithms" » "modified pulsed optimisation algorithm", "modified pulsed estimation algorithms", "modified pulsed estimation algorithm", "modified pulsed optimisation algorithms", "modified pulsed estimation algorithmss", "modified policy optimization algorithms"
"modified objective optimization algorithm" » "modified multiobjective optimization algorithm", "modified objective optimisation algorithm", "modified objective estimation algorithm", "modified objective estimation algorithms"

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 pulsed optimization algorithms") OR ("modified objective optimization algorithm"))~.
• Removing quotes may allow a broader search: (( modified pulsed optimization algorithms ) or ( modified objective optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified pulsed optimization algorithms") or ("modified objective optimization algorithm"))*.