Perhaps you should try some spelling variations:
"modified passive optimization algorithms" » "modified passive optimisation algorithm", "modified passive estimation algorithms", "modified passive estimation algorithm", "modified bayesian optimization algorithms", "modified game optimization algorithms", "modified policy optimization algorithms", "modified adaptive optimization algorithms"
"modified caging methods algorithm" » "modified making methods algorithm", "modified learning methods algorithm", "modified counting methods 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 passive optimization algorithms") OR ("modified caging methods algorithm"))~.
• Removing quotes may allow a broader search: (( modified passive optimization algorithms ) or ( modified caging methods algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified passive optimization algorithms") or ("modified caging methods algorithm"))*.