Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
optimized algorithms » optimized algorithm, optimizer algorithms, optimization algorithms
objective optimized » objective optimal, objective optimization
global estimation » global optimization, global edition, global variation

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified objective optimized algorithms ) or ( modified global estimation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified objective optimized algorithms ) OR ( modified global estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( modified objective optimized algorithms ) or ( modified global estimation algorithms ))*.