Perhaps you should try some spelling variations:
"modified stochastic optimisation algorithm" » "modified stochastic optimization algorithm", "modified static optimization algorithm", "modified stochastic configuration algorithm", "modified stochastic optimization algorithms", "modified stochastic estimation algorithms"
"modified orca estimation algorithm" » "modified dorca estimation algorithm", "modified orcad estimation algorithm", "modified ohca estimation algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified stochastic optimisation algorithm") or ("modified orca estimation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified stochastic optimisation algorithm") OR ("modified orca estimation algorithm")).
• Removing quotes may allow a broader search: (( modified stochastic optimisation algorithm ) or ( modified orca estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified stochastic optimisation algorithm") or ("modified orca estimation algorithm"))*.