Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
notion estimation » motion estimation
modified network » certified network, defined network, modified near

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 notion estimation algorithms ) OR ( modified network optimization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified notion estimation algorithms ) or ( modified network optimization algorithm ))*.