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

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("_ estimation algorithms") OR ("_ optimisation algorithm"))) or ("robust optimized algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ estimation algorithms") OR ("_ optimisation algorithm"))) OR ("robust optimized algorithm")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"_ estimation algorithms\") OR (\"_ optimisation algorithm\"))) or (\"robust optimized algorithm\"))".
• Removing quotes may allow a broader search: (((( _ estimation algorithms ) OR ( _ optimisation algorithm ))) or ( robust optimized algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("_ estimation algorithms") OR ("_ optimisation algorithm"))) or ("robust optimized algorithm"))*.