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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("_ optimization algorithms") or ("_ estimation algorithmss"))) or ("same optimized algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ optimization algorithms") OR ("_ estimation algorithmss"))) OR ("same optimized algorithm")).
• Removing quotes may allow a broader search: (((( _ optimization algorithms ) or ( _ estimation algorithmss ))) or ( same optimized algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("_ optimization algorithms") or ("_ estimation algorithmss"))) or ("same optimized algorithm"))*.