Perhaps you should try some spelling variations:
"_ optimization algorithms" » "_ optimisation algorithm", "_ estimation algorithms", "_ estimation algorithm"
"pose estimation algorithmss" » "pose estimation algorithms", "pose estimation algorithm", "poses estimation algorithmss", "post estimation algorithmss", "jose estimation algorithmss"
"_ optimized algorithm" » "_ optimized algorithms", "_ optimizer algorithms"

Try widening your search to All Fields.

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