Perhaps you should try some spelling variations:
"modified multiobjective optimized algorithm" » "modified multiobjective optimization algorithm", "modified multiobjective optimized algorithms", "modified multiobjective optimizer algorithms"
"modified bi1 evolution algorithm" » "modified bi1 solution algorithm", "modified bi1 evolutionary algorithm", "modified bi1 convolution algorithms", "modified time evolution algorithm", "modified _ evolution algorithm", "modified co evolution 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 algorithm") or ("modified bi1 evolution algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified multiobjective optimized algorithm") OR ("modified bi1 evolution algorithm")).
• Removing quotes may allow a broader search: (( modified multiobjective optimized algorithm ) or ( modified bi1 evolution algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified multiobjective optimized algorithm") or ("modified bi1 evolution algorithm"))*.