Perhaps you should try some spelling variations:
"modified objective convolution algorithmssssss" » "modified objective evolution algorithmsssss", "modified objective solution algorithmsssss"
"mobile learning convolution algorithms" » "mobile learning evolution algorithm", "mobile learning solution algorithm", "machine learning convolution 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 objective convolution algorithmssssss") OR ("mobile learning convolution algorithms"))~.
• Removing quotes may allow a broader search: (( modified objective convolution algorithmssssss ) or ( mobile learning convolution algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective convolution algorithmssssss") or ("mobile learning convolution algorithms"))*.