Perhaps you should try some spelling variations:
"_ optimisation algorithm" » "_ optimization algorithms", "_ estimation algorithm", "_ optimization algorithm"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ approximation algorithms"
"risk optimized algorithms" » "risk optimized algorithm", "risk optimizer algorithms", "risk optimization algorithms", "write optimized 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: (("risk optimized algorithms") or ((("_ optimisation algorithm") OR ("_ estimation algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("risk optimized algorithms") OR ((("_ optimisation algorithm") OR ("_ estimation algorithms")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"risk optimized algorithms\") or (((\"_ optimisation algorithm\") OR (\"_ estimation algorithms\"))))".
• Removing quotes may allow a broader search: (( risk optimized algorithms ) or ((( _ optimisation algorithm ) OR ( _ estimation algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("risk optimized algorithms") or ((("_ optimisation algorithm") OR ("_ estimation algorithms"))))*.