Perhaps you should try some spelling variations:
propagation algorithm » approximation algorithm (Expand search), projections algorithm (Expand search), approximation algorithms (Expand search)
coding propagation » cutting propagation (Expand search), growing propagation (Expand search), using propagation (Expand search)
algorithm based » algorithm and (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
coder coding » modern coding (Expand search), color coding (Expand search), odor coding (Expand search)
in python » _ python (Expand search)

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

• Removing quotes may allow a broader search: (( coder coding propagation algorithm based ) OR ( in python python python programming ))~.