Perhaps you should try some spelling variations:
"modified network approximation algorithm" » "modified network approximation algorithms", "certified network approximation algorithm", "defined network approximation algorithm", "modified near approximation algorithm"
"modified learning convolution algorithms" » "modified learning evolution algorithm", "modified learning solution algorithm", "mobile learning convolution algorithms", "modified caging convolution algorithms"

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