Perhaps you should try some spelling variations:
"modified notion estimation algorithmsss" » "modified notion estimation algorithms", "modified notion estimation algorithm", "modified motion estimation algorithmsss"
"modified robust optimization algorithm" » "modified robust optimization algorithms", "modified robust optimisation algorithm", "modified robust 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 robust optimization algorithm") or ("modified notion estimation algorithmsss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified robust optimization algorithm") OR ("modified notion estimation algorithmsss")).
• Removing quotes may allow a broader search: (( modified robust optimization algorithm ) or ( modified notion estimation algorithmsss )).
• Adding a wildcard symbol may retrieve word variants: (("modified robust optimization algorithm") or ("modified notion estimation algorithmsss"))*.