Perhaps you should try some spelling variations:
"modified robust estimation algorithmsss" » "modified robust estimation algorithms", "modified robust estimation algorithm", "modified robust optimization algorithmsss", "modified pose estimation algorithmsss", "modified risk estimation algorithmsss"
"modified objective optimisation algorithm" » "modified objective optimization algorithm", "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective estimation algorithm", "modified objective estimation algorithms"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective optimisation algorithm") or ("modified robust estimation algorithmsss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective optimisation algorithm") OR ("modified robust estimation algorithmsss")).
• Removing quotes may allow a broader search: (( modified objective optimisation algorithm ) or ( modified robust estimation algorithmsss )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimisation algorithm") or ("modified robust estimation algorithmsss"))*.