Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
estimations algorithm » estimation algorithm, optimisation algorithm
cover estimations » pose estimation
dose estimation » pose estimation, risk estimation, pulses estimation

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• Performing a fuzzy search may retrieve terms with similar spellings: (( dose estimation algorithms ) or ( cover estimations algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( dose estimation algorithms ) OR ( cover estimations algorithm )).
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