Perhaps you should try some spelling variations:
"modified rough approximation algorithm" » "modified rough approximation algorithms", "modified rough approximations algorithm", "modified one approximation algorithm"
"mobile learning convolution algorithm" » "mobile learning convolution algorithms", "mobile learning evolution algorithm", "mobile learning solution algorithm", "machine learning convolution algorithm"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mobile learning convolution algorithm\") OR (\"modified rough approximation algorithm\"))~".
• Removing quotes may allow a broader search: (( mobile learning convolution algorithm ) OR ( modified rough approximation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("mobile learning convolution algorithm") OR ("modified rough approximation algorithm"))*.