Perhaps you should try some spelling variations:
"machine learning convolution algorithms" » "machine learning evolution algorithm", "machine learning solution algorithm"
"modified objective solution algorithmssss" » "modified objective solution algorithm", "modified objective evolutionary algorithmssss", "modified objective allocation algorithmssss"

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: (("machine learning convolution algorithms") OR ("modified objective solution algorithmssss"))~.
• Removing quotes may allow a broader search: (( machine learning convolution algorithms ) or ( modified objective solution algorithmssss ))~.
• Adding a wildcard symbol may retrieve word variants: (("machine learning convolution algorithms") or ("modified objective solution algorithmssss"))*.