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

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: "((((\"done optimized algorithm\") OR (\"done optimized algorithms\"))) OR (\"_ estimation algorithms\"))~".
• Removing quotes may allow a broader search: (((( done optimized algorithm ) OR ( done optimized algorithms ))) OR ( _ estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (((("done optimized algorithm") OR ("done optimized algorithms"))) OR ("_ estimation algorithms"))*.