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

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 changing optimization algorithms") OR ("modified stochastic configuration algorithm"))~.
• Removing quotes may allow a broader search: (( modified changing optimization algorithms ) or ( modified stochastic configuration algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified changing optimization algorithms") or ("modified stochastic configuration algorithm"))*.