Perhaps you should try some spelling variations:
"modified based convolution algorithms" » "modified based evolution algorithm", "modified based solution algorithm", "modified dilated convolution algorithms", "modified based continuation algorithms", "modified male convolution algorithms"
"modified bi1 approximation algorithms" » "modified time approximation algorithms", "modified _ approximation algorithms", "modified one approximation 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 bi1 approximation algorithms") OR ("modified based convolution algorithms"))~.
• Removing quotes may allow a broader search: (( modified bi1 approximation algorithms ) or ( modified based convolution algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified bi1 approximation algorithms") or ("modified based convolution algorithms"))*.