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