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