Perhaps you should try some spelling variations:
"modified stochastic optimization algorithm" » "modified stochastic optimization algorithms", "modified stochastic estimation algorithm", "modified stochastic estimation algorithms"
"modified charging optimisation algorithm" » "modified charging optimization algorithms", "modified charging estimation algorithm", "modified charging estimation algorithms", "modified staffing optimization algorithm", "modified caging optimisation algorithm", "modified carbon optimisation algorithm"

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

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