Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
game optimization » stage optimization, qoe optimization, market optimization
method algorithm » mom algorithm
learning method » learning methods, graining methods, learning emotion
modified game » modified male, modified adam

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: (( modified game optimization algorithms ) OR ( machine learning method algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified game optimization algorithms ) or ( machine learning method algorithm ))*.