Perhaps you should try some spelling variations:
"modified learning emotion algorithm" » "mobile learning emotion algorithm", "modified caging emotion algorithm", "modified learning evolution algorithm", "modified learning estimation algorithm", "modified learning predation algorithm", "modified learning method algorithm"
"modified average approximation algorithms" » "modified coverage approximation algorithms"

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 learning emotion algorithm") OR ("modified average approximation algorithms"))~.
• Removing quotes may allow a broader search: (( modified learning emotion algorithm ) or ( modified average approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified learning emotion algorithm") or ("modified average approximation algorithms"))*.