Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
approximation algorithm » approximation algorithms
market optimization » game optimization, parameter optimization, market capitalization
one approximation » time approximation, _ approximation, rough approximations
modified market » modified male
modified one » modified male, modified near, modified orca

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 one approximation algorithm ) OR ( modified market optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified one approximation algorithm ) or ( modified market optimization algorithms ))*.