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"
"mobile learning emotion algorithm" » "mobile learning evolution algorithm", "mobile learning estimation algorithm", "mobile learning predation algorithm", "mobile learning method algorithm", "machine learning emotion 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 ("mobile learning emotion algorithm"))~.
• Removing quotes may allow a broader search: (( modified objective optimized algorithm ) or ( mobile learning emotion algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimized algorithm") or ("mobile learning emotion algorithm"))*.