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

Try widening your search to All Fields.

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

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