Perhaps you should try some spelling variations:
"modified charging optimisation algorithm" » "modified charging optimization algorithms", "modified charging estimation algorithm", "modified staffing optimization algorithm", "modified caging optimisation algorithm", "modified carbon optimisation algorithm"
"modified notion estimation algorithms" » "modified notion estimation algorithm", "modified notion optimization algorithms", "modified notion approximation algorithms", "modified motion estimation 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 notion estimation algorithms") OR ("modified charging optimisation algorithm"))~.
• Removing quotes may allow a broader search: (( modified notion estimation algorithms ) or ( modified charging optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified notion estimation algorithms") or ("modified charging optimisation algorithm"))*.