Perhaps you should try some spelling variations:
propagation algorithm » approximation algorithm (Expand search), approximation algorithms (Expand search)
algorithm informatics » algorithms informatics (Expand search), algorithms information (Expand search), algorithmic information (Expand search)
informatics array » informatics assays (Expand search), informatics arc (Expand search), informatics urban (Expand search)
user propagation » rubber propagation (Expand search), rumor propagation (Expand search), their propagation (Expand search)
using coping » using coding (Expand search), using coupling (Expand search), nursing coping (Expand search)
coping on » coping in (Expand search), coping of (Expand search), coping and (Expand search)
on python » in python (Expand search), of python (Expand search), _ python (Expand search)

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

• Removing quotes may allow a broader search: (( user propagation algorithm informatics array ) OR ( using coping on python programming ))~.