Perhaps you should try some spelling variations:
estimation algorithms » optimization algorithms, optimisation algorithm, approximation algorithms
market estimation » market optimization, parameter estimation
game estimation » pose estimation, game optimization
modified market » modified male
modified game » modified male, modified adam

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified game estimation algorithm ) or ( modified market estimation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified game estimation algorithm ) OR ( modified market estimation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( modified game estimation algorithm ) or ( modified market estimation algorithms ))*.