Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
source algorithm » our algorithm, search algorithm
game estimation » pose estimation, game optimization
modified game » modified male, modified adam
core using » care nursing

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

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