Perhaps you should try some spelling variations:
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"
"most optimized algorithm" » "most optimized algorithms", "most optimizer algorithms", "mot optimized algorithm"
"joses optimized algorithm" » "joses optimized algorithms", "joses optimizer algorithms", "jose optimized algorithm", "jones optimized algorithm", "poses optimized algorithm"

Try widening your search to All Fields.

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