Perhaps you should try some spelling variations:
estimation algorithmss » estimation algorithm, optimization algorithms
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
objective estimation » objective optimization, objective allocation
modified adam » modified df, 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 adam estimation algorithms ) OR ( modified objective estimation algorithmss ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified adam estimation algorithms ) or ( modified objective estimation algorithmss ))*.