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

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