Perhaps you should try some spelling variations:
convolution algorithms » evolution algorithm, solution algorithm
one approximation » time approximation, _ approximation, rough approximations
a convolution » d convolutional
modified one » modified male, modified near, modified orca
modified a » modified _, modified df, modified adam

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 one approximation algorithms ) OR ( modified a convolution algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified one approximation algorithms ) or ( modified a convolution algorithms ))*.