Perhaps you should try some spelling variations:
"_ optimisation algorithm" » "_ optimization algorithms", "_ estimation algorithm", "_ estimation algorithms", "_ optimization algorithm"
"risk optimized algorithms" » "risk optimizer algorithms", "risk optimization algorithms", "risk optimizer algorithmss", "write optimized algorithms"
"risk optimized algorithm" » "risk optimizer algorithms", "write optimized algorithm"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("risk optimized algorithm") OR ("risk optimized algorithms"))) or ("_ optimisation algorithm"))~.
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• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"risk optimized algorithm\") OR (\"risk optimized algorithms\"))) or (\"_ optimisation algorithm\"))".
• Removing quotes may allow a broader search: (((( risk optimized algorithm ) OR ( risk optimized algorithms ))) or ( _ optimisation algorithm )).
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