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

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong optimized algorithms") or ("cost optimized algorithms"))) or ("_ estimation algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong optimized algorithms") OR ("cost optimized algorithms"))) OR ("_ estimation algorithms")).
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