Perhaps you should try some spelling variations:
"_ optimization algorithms" » "_ optimisation algorithm", "_ estimation algorithms", "_ estimation algorithm"
"done optimizer algorithms" » "done optimized algorithms", "dong optimizer algorithms", "don optimizer algorithms"
"one optimized algorithm" » "one optimized algorithms", "_ optimized algorithm"

Try widening your search to All Fields.

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