Perhaps you should try some spelling variations:
"_ optimization algorithm" » "_ optimization algorithms", "_ optimisation algorithm", "_ estimation algorithm"
"cong optimized algorithm" » "cong optimized algorithms", "cong optimizer algorithms"
"post optimized algorithm" » "post optimized algorithms", "post optimizer algorithms", "most optimized algorithm", "cost optimized algorithm"

Try widening your search to All Fields.

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