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

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("done optimized algorithm") OR ("one optimizer algorithms"))) OR ("_ estimation algorithms"))~.
• Removing quotes may allow a broader search: (((( done optimized algorithm ) or ( one optimizer algorithms ))) or ( _ estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (((("done optimized algorithm") or ("one optimizer algorithms"))) or ("_ estimation algorithms"))*.