Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithm", "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"modified qoe optimization algorithmss" » "modified qoe optimization algorithms", "modified qoe estimation algorithms", "modified qoe estimation algorithm", "modified game optimization algorithmss", "modified _ optimization algorithmss", "modified stage optimization algorithmss", "modified male optimization algorithmss", "modified bi1 optimization algorithmss"

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