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 data » using java, missing data
using sat » using a, using raw

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified ((using data) OR (using sat)) algorithm ) or ( modified game optimization algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified ((using data) OR (using sat)) algorithm ) OR ( modified game optimization algorithm )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified ((using data) OR (using sat)) algorithm ) or ( modified game optimization algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( modified ((using data) OR (using sat)) algorithm ) or ( modified game optimization algorithm ))*.