Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
game optimization » stage optimization, qoe optimization, market optimization
modified game » modified male, modified adam
using open » using opencl
using one » using pre, using online
code » core

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: (( code ((using open) OR (using one)) algorithm ) OR ( modified game optimization algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( code ((using open) OR (using one)) algorithm ) or ( modified game optimization algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( code ((using open) OR (using one)) algorithm ) or ( modified game optimization algorithm ))*.