Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective approximation algorithms"
"modified pulse estimation algorithm" » "modified pulses estimation algorithm", "modified pose estimation algorithm", "modified sphere estimation algorithm", "modified male estimation algorithm", "modified passive estimation algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified pulse estimation algorithm") OR ("modified multiobjective estimation algorithms"))~.
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