Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
lighting optimization » lighting estimation, staffing optimization
modified lighting » modified caging
method algorithm » mom algorithm
mobile learning » machine learning
learning method » learning methods, graining methods, learning emotion

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