Perhaps you should try some spelling variations:
"modified objective optimisation algorithmss" » "modified objective optimisation algorithm", "modified objective optimization algorithms", "modified objective estimation algorithm", "modified objective optimization algorithmss", "modified multiobjective optimization algorithmss"
"modified stochastic estimation algorithms" » "modified stochastic optimization algorithms", "modified stochastic estimation algorithm", "modified stochastic optimisation algorithm"

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 stochastic estimation algorithms") or ("modified objective optimisation algorithmss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified stochastic estimation algorithms") OR ("modified objective optimisation algorithmss")).
• Removing quotes may allow a broader search: (( modified stochastic estimation algorithms ) or ( modified objective optimisation algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (("modified stochastic estimation algorithms") or ("modified objective optimisation algorithmss"))*.