Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"modified pulses optimizer algorithms" » "modified pulses optimized algorithms", "modified pulses optimized algorithm", "modified pulses optimization algorithms", "modified pulse optimizer algorithms", "modified pulsed optimizer 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 pulses optimizer algorithms") OR ("modified multiobjective estimation algorithm"))~.
• Removing quotes may allow a broader search: (( modified pulses optimizer algorithms ) or ( modified multiobjective estimation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified pulses optimizer algorithms") or ("modified multiobjective estimation algorithm"))*.