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