Perhaps you should try some spelling variations:
"_ optimization algorithms" » "_ optimisation algorithm", "_ estimation algorithm", "_ optimizer algorithms"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimisation algorithm", "_ approximation algorithms"
"done optimized algorithms" » "done optimized algorithm", "done optimizer algorithms", "dong optimized algorithms", "one optimized algorithms", "don 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: (("done optimized algorithms") or ((("_ optimization algorithms") OR ("_ estimation algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("done optimized algorithms") OR ((("_ optimization algorithms") OR ("_ estimation algorithms")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"done optimized algorithms\") or (((\"_ optimization algorithms\") OR (\"_ estimation algorithms\"))))".
• Removing quotes may allow a broader search: (( done optimized algorithms ) or ((( _ optimization algorithms ) OR ( _ estimation algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("done optimized algorithms") or ((("_ optimization algorithms") OR ("_ estimation algorithms"))))*.