Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
write optimization » qoe optimization, stage optimization, attribute optimization
game optimization » stage optimization, qoe optimization, market optimization
jose estimation » pose estimation, risk estimation, cover estimations

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

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