Perhaps you should try some spelling variations:
"modified multiobjective optimized algorithm" » "modified multiobjective optimization algorithm", "modified multiobjective optimized algorithms", "modified multiobjective optimizer algorithms"
"modified passive evolutionary algorithm" » "modified passive evolution algorithm", "modified passive solution algorithm", "modified adaptive evolutionary algorithm"

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

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