Perhaps you should try some spelling variations:
"risk optimization algorithmss" » "risk optimisation algorithm", "risk estimation algorithms", "risk estimation algorithm", "risk optimisation algorithms", "risk estimation algorithmss", "robust optimization algorithmss", "_ optimization algorithmss", "game optimization algorithmss"
"parameters optimization algorithms" » "parameter optimization algorithms", "parameter estimation algorithms", "parameters optimisation algorithm", "parameters estimation algorithms", "parameters estimation algorithm"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"risk optimization algorithmss\") OR (\"parameters optimization algorithms\"))~".
• Removing quotes may allow a broader search: (( risk optimization algorithmss ) OR ( parameters optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("risk optimization algorithmss") OR ("parameters optimization algorithms"))*.