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