Perhaps you should try some spelling variations:
"_ optimization algorithm" » "_ optimization algorithms", "_ optimisation algorithm", "_ estimation algorithm"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"
"same optimized algorithms" » "same optimized algorithm", "same optimizer algorithms", "same optimization algorithms", "some optimized 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 optimized algorithms") or ((("_ optimization algorithm") or ("_ estimation algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("same optimized algorithms") OR ((("_ optimization algorithm") OR ("_ estimation algorithms")))).
• Removing quotes may allow a broader search: (( same optimized algorithms ) or ((( _ optimization algorithm ) or ( _ estimation algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("same optimized algorithms") or ((("_ optimization algorithm") or ("_ estimation algorithms"))))*.