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