Perhaps you should try some spelling variations:
"response estimation algorithms" » "response estimation algorithm", "response optimization algorithms", "response optimisation algorithm", "pose estimation algorithms", "response association algorithms"
"_ optimizer algorithms" » "_ optimized algorithms", "_ optimized algorithm", "_ optimization algorithms"
"_ optimise algorithms" » "_ optimized algorithms", "_ optimized algorithm", "_ optimize algorithms"

Try widening your search to All Fields.

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