Perhaps you should try some spelling variations:
"modified objective optimizer algorithms" » "modified objective optimized algorithms", "modified objective optimization algorithms", "modified objective optimal algorithms"
"modified charging optimized algorithm" » "modified charging optimized algorithms", "modified choosing optimizer algorithm", "modified caging optimized algorithm", "modified carbon optimized 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 charging optimized algorithm") OR ("modified objective optimizer algorithms"))~.
• Removing quotes may allow a broader search: (( modified charging optimized algorithm ) or ( modified objective optimizer algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified charging optimized algorithm") or ("modified objective optimizer algorithms"))*.