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