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

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 learning convolution algorithm ) OR ( modified adaptive estimation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified learning convolution algorithm ) or ( modified adaptive estimation algorithm ))*.