Perhaps you should try some spelling variations:
"modified multiobjective optimized algorithm" » "modified multiobjective optimization algorithm", "modified multiobjective optimized algorithms", "modified multiobjective optimizer algorithms"
"modified thermal activation algorithm" » "modified thermal estimation algorithm", "modified thermal estimation algorithms", "modified thermal optimisation algorithm", "modified chemical activation algorithm", "modified thermal oxidation algorithm"

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

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