Perhaps you should try some spelling variations:
"_ optimized algorithmsss" » "_ optimized algorithm", "_ optimizer algorithms", "_ optimized algorithmss", "_ optimizer algorithmsss", "_ optimization algorithmsss"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"
"same optimized algorithms" » "same optimized algorithm", "same optimizer algorithms", "same 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: (((("_ estimation algorithms") OR ("_ optimized algorithmsss"))) OR ("same optimized algorithms"))~.
• Removing quotes may allow a broader search: (((( _ estimation algorithms ) or ( _ optimized algorithmsss ))) or ( same optimized algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (((("_ estimation algorithms") or ("_ optimized algorithmsss"))) or ("same optimized algorithms"))*.