Perhaps you should try some spelling variations:
quantization algorithm » estimation algorithm
passive quantization » adaptive quantization
modified learning » mobile learning, modified caging
method algorithm » mom algorithm
modified passive » modified adaptive
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 learning method algorithm ) OR ( modified passive quantization algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified learning method algorithm ) or ( modified passive quantization algorithm ))*.