Perhaps you should try some spelling variations:
convolution algorithms » evolution algorithm, solution algorithm
convolution algorithm » evolution algorithm, solution algorithm
invasive convolution » invasive ventilation
modified invasive » modified passive
modified learning » mobile learning, modified caging

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified invasive convolution algorithms ) or ( modified learning convolution algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified invasive convolution algorithms ) OR ( modified learning convolution algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( modified invasive convolution algorithms ) or ( modified learning convolution algorithm ))*.