Perhaps you should try some spelling variations:
"modified objective optimized algorithm" » "modified objective optimal algorithm", "modified objective optimization algorithm", "modified objective optimized algorithms", "modified objective optimizer algorithms"
"machines learning estimation algorithm" » "machines learning emotion algorithm", "machines lighting estimation algorithm", "machine learning estimation algorithm", "active learning estimation algorithm", "mapping learning estimation 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 objective optimized algorithm") OR ("machines learning estimation algorithm"))~.
• Removing quotes may allow a broader search: (( modified objective optimized algorithm ) or ( machines learning estimation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimized algorithm") or ("machines learning estimation algorithm"))*.