Perhaps you should try some spelling variations:
"_ optimization algorithm" » "_ optimization algorithms", "_ optimisation algorithm", "_ estimation algorithm"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"
"pulsed optimized algorithm" » "pulsed optimized algorithms", "pulsed optimizer algorithms", "pulse optimized algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("pulsed optimized algorithm") or ((("_ optimization algorithm") or ("_ estimation algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("pulsed optimized algorithm") OR ((("_ optimization algorithm") OR ("_ estimation algorithms")))).
• Removing quotes may allow a broader search: (( pulsed optimized algorithm ) or ((( _ optimization algorithm ) or ( _ estimation algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("pulsed optimized algorithm") or ((("_ optimization algorithm") or ("_ estimation algorithms"))))*.