Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
approximation algorithm » approximation algorithms
bi1 approximation » time approximation, _ approximation, one approximation
adam optimization » game optimization, stage optimization, _ optimization
modified adam » modified df, modified near
modified bi1 » modified _

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified bi1 approximation algorithm ) or ( modified adam optimization algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified bi1 approximation algorithm ) OR ( modified adam optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( modified bi1 approximation algorithm ) or ( modified adam optimization algorithms ))*.