Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithms" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective optimisation algorithm"
"modified nodal solution algorithm" » "modified nodal evolution algorithm", "modified nodal convolution algorithms", "modified nodal evolutionary algorithm", "modified adam solution algorithm", "modified near solution algorithm", "modified model solutions algorithm", "modified norway solution algorithm", "modified nacl solution 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 estimation algorithms") or ("modified nodal solution algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified multiobjective estimation algorithms") OR ("modified nodal solution algorithm")).
• Removing quotes may allow a broader search: (( modified multiobjective estimation algorithms ) or ( modified nodal solution algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified multiobjective estimation algorithms") or ("modified nodal solution algorithm"))*.