Perhaps you should try some spelling variations:
"modified stochastic estimation algorithms" » "modified stochastic optimization algorithms", "modified stochastic estimation algorithm", "modified stochastic optimisation algorithm"
"modified learning convolution algorithm" » "modified learning convolution algorithms", "modified learning evolution algorithm", "modified learning solution algorithm", "mobile learning convolution algorithm", "modified caging convolution algorithm"

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 stochastic estimation algorithms") OR ("modified learning convolution algorithm"))~.
• Removing quotes may allow a broader search: (( modified stochastic estimation algorithms ) or ( modified learning convolution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified stochastic estimation algorithms") or ("modified learning convolution algorithm"))*.