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