Perhaps you should try some spelling variations:
"_ optimisation algorithm" » "_ optimization algorithms", "_ estimation algorithm"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ approximation algorithms"
"cost optimizer algorithms" » "cost optimized algorithms", "cost optimized algorithm", "cost optimization algorithms", "most 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: (((("_ optimisation algorithm") or ("_ estimation algorithms"))) or ("cost optimizer algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ optimisation algorithm") OR ("_ estimation algorithms"))) OR ("cost optimizer algorithms")).
• Removing quotes may allow a broader search: (((( _ optimisation algorithm ) or ( _ estimation algorithms ))) or ( cost optimizer algorithms )).
• Adding a wildcard symbol may retrieve word variants: (((("_ optimisation algorithm") or ("_ estimation algorithms"))) or ("cost optimizer algorithms"))*.