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

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