Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
market optimization » parameter optimization, market capitalization
same optimisation » stage optimization, _ optimisation, qoe optimization
game optimization » stage optimization, qoe optimization, _ optimization

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: (( ((same optimisation) OR (game optimization)) algorithms ) OR ( market optimization algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((same optimisation) OR (game optimization)) algorithms ) or ( market optimization algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( ((same optimisation) OR (game optimization)) algorithms ) or ( market optimization algorithm ))*.