Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithm, optimized algorithms
estimation algorithms » estimation algorithm, optimisation algorithm, approximation algorithms
modified quantile » modified adaptive
near optimization » network optimization, stage optimization, _ optimization
modified near » modified seird, modified adam

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