Perhaps you should try some spelling variations:
"_ optimizedr algorithms" » "_ optimized algorithms", "_ optimizer algorithms", "_ optimized algorithm", "_ optimise algorithms", "_ optimizeddr algorithms", "_ optimisedr algorithms"
"_ optimize algorithmss" » "_ optimized algorithms", "_ optimizer algorithms", "_ optimized algorithm", "_ optimized algorithmss", "_ optimise algorithmss"
"jose estimation algorithm" » "pose estimation algorithm", "risk estimation algorithm", "cover estimations algorithm"

Try widening your search to All Fields.

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