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

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"pose estimation algorithm\") OR (((\"_ optimization algorithm\") OR (\"_ estimation algorithms\"))))~".
• Removing quotes may allow a broader search: (( pose estimation algorithm ) OR ((( _ optimization algorithm ) OR ( _ estimation algorithms ))))~.
• Adding a wildcard symbol may retrieve word variants: (("pose estimation algorithm") OR ((("_ optimization algorithm") OR ("_ estimation algorithms"))))*.