Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"modified aging optimisation algorithmss" » "modified aging optimisation algorithm", "modified aging optimization algorithms", "modified aging estimation algorithms", "modified staffing optimization algorithmss", "modified caging optimisation algorithmss"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified aging optimisation algorithmss") OR ("modified multiobjective estimation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified aging optimisation algorithmss\") OR (\"modified multiobjective estimation algorithm\"))".
• Removing quotes may allow a broader search: (( modified aging optimisation algorithmss ) OR ( modified multiobjective estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified aging optimisation algorithmss") OR ("modified multiobjective estimation algorithm"))*.