Perhaps you should try some spelling variations:
"_ optimisation algorithm" » "_ optimization algorithms", "_ estimation algorithm", "_ optimization algorithm"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ approximation algorithms"
"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 ("_ optimisation algorithm"))) OR ("same optimized algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"_ estimation algorithms\") OR (\"_ optimisation algorithm\"))) or (\"same optimized algorithms\"))~".
• Removing quotes may allow a broader search: (((( _ estimation algorithms ) OR ( _ optimisation algorithm ))) or ( same optimized algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (((("_ estimation algorithms") OR ("_ optimisation algorithm"))) or ("same optimized algorithms"))*.